-4(-5+2a)-3=57

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Solution for -4(-5+2a)-3=57 equation: 



-4(-5+2a)-3=57

We move all terms to the left:

-4(-5+2a)-3-(57)=0

We add all the numbers together, and all the variables

-4(2a-5)-3-57=0

We add all the numbers together, and all the variables

-4(2a-5)-60=0

We multiply parentheses

-8a+20-60=0

We add all the numbers together, and all the variables

-8a-40=0

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

-8a=40

a=40/-8

a=-5

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