-2(2-4a)+7(-6a-3)=-25

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Solution for -2(2-4a)+7(-6a-3)=-25 equation: 



-2(2-4a)+7(-6a-3)=-25

We move all terms to the left:

-2(2-4a)+7(-6a-3)-(-25)=0

We add all the numbers together, and all the variables

-2(-4a+2)+7(-6a-3)-(-25)=0

We add all the numbers together, and all the variables

-2(-4a+2)+7(-6a-3)+25=0

We multiply parentheses

8a-42a-4-21+25=0

We add all the numbers together, and all the variables

-34a=0

a=0/-34

a=0

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