-2(1+7a)-2a=-130

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Solution for -2(1+7a)-2a=-130 equation: 



-2(1+7a)-2a=-130

We move all terms to the left:

-2(1+7a)-2a-(-130)=0

We add all the numbers together, and all the variables

-2(7a+1)-2a-(-130)=0

We add all the numbers together, and all the variables

-2a-2(7a+1)+130=0

We multiply parentheses

-2a-14a-2+130=0

We add all the numbers together, and all the variables

-16a+128=0

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

-16a=-128

a=-128/-16

a=+8

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