-4(1-7a)=136

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Solution for -4(1-7a)=136 equation: 



-4(1-7a)=136

We move all terms to the left:

-4(1-7a)-(136)=0

We add all the numbers together, and all the variables

-4(-7a+1)-136=0

We multiply parentheses

28a-4-136=0

We add all the numbers together, and all the variables

28a-140=0

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

28a=140

a=140/28

a=5

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