# Word Problem Very Basic

• January 4th 2009, 09:32 AM
frankpham12
Word Problem Very Basic
Hey guys i cant seem to understand much word problems.. for example

"The sum of a number and six, multiplied by two results in twenty-two"

I need a math expression out of that.

If you have time can you please give me some hints on how to solve word problems. May you also tell me some words that i need to know to solve words problems for Example "of" Means multiply. If you know more please list them that would be very helpful.
• January 4th 2009, 09:41 AM
Soroban
Hello, frankpham12!

Let $x$ = the number.

$\underbrace{\text{The sum of a number and six }}_{x \:+\: 6}\; \underbrace{\text{ multiplied by two }}_{\times\: 2}\; \underbrace{\text{ results in }}_{=} \;\underbrace{\text{ twenty-two}}_{22}$

There is our equation . . . $(x+6)\cdot2 \:=\:22$

• January 4th 2009, 09:43 AM
Chris L T521
Quote:

Originally Posted by frankpham12
Hey guys i cant seem to understand much word problems.. for example

"The sum of a number and six, multiplied by two results in twenty-two"

I need a math expression out of that.

If you have time can you please give me some hints on how to solve word problems. May you also tell me some words that i need to know to solve words problems for Example "of" Means multiply. If you know more please list them that would be very helpful.

Let's break it down:

The sum of a number and six, multiplied by two results in twenty-two.

Let $n$ be this mystery number.

Then, sum of a number and six can be represented mathematically as $n+6$

Now,
multiplied by two means that we take the previous result, and double it. Mathematically, it would be the same as saying $2\left(n+6\right)$

Finally, the previous result results in twenty-two. This now gives us the equation $2\left(n+6\right)=22$

Now you can solve for n.

EDIT: Soroban beat me.
• January 4th 2009, 09:43 AM
frankpham12
Quote:

Originally Posted by Soroban
Hello, frankpham12!

Let $x$ = the number.

$\underbrace{\text{The sum of a number and six }}_{x \:+\: 6}\; \underbrace{\text{ multiplied by two }}_{\times\: 2}\; \underbrace{\text{ results in }}_{=} \;\underbrace{\text{ twenty-two}}_{22}$

There is our equation . . . $(x+6)\cdot2 \:=\:22$

omg thats was so easy thank You
• January 4th 2009, 09:44 AM
TheMasterMind
Quote:

Originally Posted by frankpham12
Hey guys i cant seem to understand much word problems.. for example

"The sum of a number and six, multiplied by two results in twenty-two"

I need a math expression out of that.

If you have time can you please give me some hints on how to solve word problems. May you also tell me some words that i need to know to solve words problems for Example "of" Means multiply. If you know more please list them that would be very helpful.

X+6*2=22
2x+12=22
2x=10
x=10/2
x=5

checking
5+6*2=22
11*2=22
22=22
• January 4th 2009, 09:49 AM
frankpham12
Quote:

Originally Posted by Soroban
Hello, frankpham12!

Let $x$ = the number.

$\underbrace{\text{The sum of a number and six }}_{x \:+\: 6}\; \underbrace{\text{ multiplied by two }}_{\times\: 2}\; \underbrace{\text{ results in }}_{=} \;\underbrace{\text{ twenty-two}}_{22}$

There is our equation . . . $(x+6)\cdot2 \:=\:22$

Quote:

Originally Posted by Chris L T521
Let's break it down:

The sum of a number and six, multiplied by two results in twenty-two.

Let $n$ be this mystery number.

Then, sum of a number and six can be represented mathematically as $n+6$

Now,
multiplied by two means that we take the previous result, and double it. Mathematically, it would be the same as saying $2\left(n+6\right)$

Finally, the previous result results in twenty-two. This now gives us the equation $2\left(n+6\right)=22$

Now you can solve for n.

EDIT: Soroban beat me.

what does "And" mean in word problems
• January 4th 2009, 09:52 AM
TheMasterMind
Quote:

Originally Posted by frankpham12
what does "And" mean in word problems

If you looked at the above work and matched it with the problem you would see it means addition.
• January 4th 2009, 09:59 AM
frankpham12
Quote:

Originally Posted by TheMasterMind
If you looked at the above work and matched it with the problem you would see it means addition.

no but i thought sum mean addition
• January 4th 2009, 10:14 AM
frankpham12
whats does "AND" mean in word problems
Quote:

Originally Posted by Chris L T521
Let's break it down:

The sum of a number and six, multiplied by two results in twenty-two.

Let $n$ be this mystery number.

Then, sum of a number and six can be represented mathematically as $n+6$

Now,
multiplied by two means that we take the previous result, and double it. Mathematically, it would be the same as saying $2\left(n+6\right)$

Finally, the previous result results in twenty-two. This now gives us the equation $2\left(n+6\right)=22$

Now you can solve for n.

EDIT: Soroban beat me.

• January 4th 2009, 10:21 AM
TheMasterMind
Quote:

Originally Posted by frankpham12

If you looked at the above work and matched it with the problem you would see it means addition.
• January 4th 2009, 01:45 PM
mr fantastic
Quote:

Originally Posted by frankpham12
Hey guys i cant seem to understand much word problems.. for example

"The sum of a number and six, multiplied by two results in twenty-two"

I need a math expression out of that.

If you have time can you please give me some hints on how to solve word problems. May you also tell me some words that i need to know to solve words problems for Example "of" Means multiply. If you know more please list them that would be very helpful.

As far as I can see, the question has been answered. Given the direction of the thread, I see no usful purpose in keeping it open.