1. Find the value of

a-3+5a-2 =

2. What is the reciprocal of -1/5?

3. The reciprocal of 2 is ?

(Bow)

- March 2nd 2011, 06:06 PMbdubbNaming the Property of real numbers Illustrated by each of the following.
1. Find the value of

a-3+5a-2 =

2. What is the reciprocal of -1/5?

3. The reciprocal of 2 is ?

(Bow) - March 2nd 2011, 06:19 PMbdubb
1. Simplifying

a + -3 + 5a + -2 = 0

Reorder the terms:

-3 + -2 + a + 5a = 0

Combine like terms: -3 + -2 = -5

-5 + a + 5a = 0

Combine like terms: a + 5a = 6a

-5 + 6a = 0

Solving

-5 + 6a = 0

Move all terms containing a to the left, all other terms to the right.

Add '5' to each side of the equation.

-5 + 5 + 6a = 0 + 5

Combine like terms: -5 + 5 = 0

0 + 6a = 0 + 5

6a = 0 + 5

Combine like terms: 0 + 5 = 5

6a = 5

Divide each side by '6'.

a = 0.8333333333

Simplifying

a = 0.8333333333

2. reciprocal of(-1) / 5 = -0.

3. 0.5

I relooked at it. Is this all correct? - March 2nd 2011, 06:36 PMbdubb
1. I used a program called Algebra Helper :s I didn't add the 0 in the Question I asked on the program. What did It do wrong? How could I solve this right

2. 5?

3. 1/2 or should I put 0.5 it will be the same right? - March 2nd 2011, 06:46 PMbdubb
Name the property of real numbers Illustrated by each of the following.

1. Find the value of:

a-3+5a-2=

^ Thats what it says exactly on my Exam. - March 2nd 2011, 06:49 PMskeeter
- March 2nd 2011, 06:51 PMbdubb
It's not like the Exam you think it is its just what my Book says.. not like a test :(