7a-(8-2a)=-4(a+5)

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Solution for 7a-(8-2a)=-4(a+5) equation: 



7a-(8-2a)=-4(a+5)

We move all terms to the left:

7a-(8-2a)-(-4(a+5))=0

We add all the numbers together, and all the variables

7a-(-2a+8)-(-4(a+5))=0

We get rid of parentheses

7a+2a-(-4(a+5))-8=0



We calculate terms in parentheses: -(-4(a+5)), so:

-4(a+5)

We multiply parentheses

-4a-20

Back to the equation:

-(-4a-20)



We add all the numbers together, and all the variables

9a-(-4a-20)-8=0

We get rid of parentheses

9a+4a+20-8=0

We add all the numbers together, and all the variables

13a+12=0

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

13a=-12

a=-12/13

a=-12/13

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