5(-a-2)=-7a

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Solution for 5(-a-2)=-7a equation: 



5(-a-2)=-7a

We move all terms to the left:

5(-a-2)-(-7a)=0

We add all the numbers together, and all the variables

5(-1a-2)-(-7a)=0

We multiply parentheses

-5a-(-7a)-10=0

We get rid of parentheses

-5a+7a-10=0

We add all the numbers together, and all the variables

2a-10=0

We move all terms containing a to the left, all other terms to the right

2a=10

a=10/2

a=5

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