Thread: Easy Math Question - Just need to explain it to me.

What strategies can be used to solve and equation algebraically?

Use 5x - 12 = 4 - 3x and 3/4x + 10 = 7 as an example.


Please describe each strategy for me, I really don't know how to explain it and my math homework is driving me crazy!!

Step 1: Group variables on one side, constants on the other.

Step 2: "Normalize" variables (in other words, multiply both sides by a factor such that the coefficient of the variable becomes 1).

Example:

Step 1:

Step 2:

Answer:

Now try your problems.

Well, even if you can't "explain", can you solve each of those ?

Can you solve this one for x: 2x + 3 = 7

So what would be the answer to 3/4x + 10 = 12

I don't get hot to solve fractions...Please describe step by step

Originally Posted by Johnathon324

So what would be the answer to 3/4x + 10 = 12

I don't get hot to solve fractions...Please describe step by step

You can always multiply through by the LCD of the equation (in this case 4) to clear the fraction

is equivalent to

Then continue as normal

So lets say I want to check this equation? What should I do? Solve it basically and work backwards? How can I explain than in this essay?

Not sure what to tell you; if you're writing an "essay" on solving,
seems to me you should already know HOW to solve; have you
not attended math classes?

I can only show what I do; she said that no numbers or equations should be in the essay. So I have to work around it...

Originally Posted by Johnathon324

I can only show what I do; she said that no numbers or equations should be in the essay. So I have to work around it...

Never mind I found a way to describe it - Thx though.