-4a-25=4(1-4a)+7

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Solution for -4a-25=4(1-4a)+7 equation: 



-4a-25=4(1-4a)+7

We move all terms to the left:

-4a-25-(4(1-4a)+7)=0

We add all the numbers together, and all the variables

-4a-(4(-4a+1)+7)-25=0



We calculate terms in parentheses: -(4(-4a+1)+7), so:

4(-4a+1)+7

We multiply parentheses

-16a+4+7

We add all the numbers together, and all the variables

-16a+11

Back to the equation:

-(-16a+11)



We get rid of parentheses

-4a+16a-11-25=0

We add all the numbers together, and all the variables

12a-36=0

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

12a=36

a=36/12

a=3

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