-2(2+3a)-7(a+3)=1-7a-8a

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Solution for -2(2+3a)-7(a+3)=1-7a-8a equation: 



-2(2+3a)-7(a+3)=1-7a-8a

We move all terms to the left:

-2(2+3a)-7(a+3)-(1-7a-8a)=0

We add all the numbers together, and all the variables

-2(3a+2)-7(a+3)-(-15a+1)=0

We multiply parentheses

-6a-7a-(-15a+1)-4-21=0

We get rid of parentheses

-6a-7a+15a-1-4-21=0

We add all the numbers together, and all the variables

2a-26=0

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

2a=26

a=26/2

a=13

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