Question

(13a+1)-(5a+13)=-6 find the value of a

Answer 1

what choices is for the question?

Answer 2

First step is to distribute that negative in the middle through the (5a + 13)

(13a +1)-(5a +13)= -6
(13a + 1) - 5a - 13 = -6

With me so far?

Answer 3

Then we can remove the parentheses from the (13a + 1)

To get to 13a + 1 -5a - 13 = -6

Now combine like terms.

Answer 4

Combineing like terms,

13a - 5a = 8a
1 - 13 = -12

We get 8a - 12 = -6
Add 12 to both sides...

8a = 6

Can you solve for a now?

Answer 5

a=3/4

Answer 6

Now check you answer by plugging in (3/4) into where the a's are and see if it comes out to be a true statement. This is how you will know if you are correct or not.

Answer 7

[13(3/4)+1]-[5(3/4)+13]=-6

10.75 - 16.75 = -6

-6 = -6 True!

So a= 3/4 is correct! =0)

Answer 8

thanks a lot

Answer 9

Np man, any time.