-4(a-4)-20=30

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Solution for -4(a-4)-20=30 equation: 



-4(a-4)-20=30

We move all terms to the left:

-4(a-4)-20-(30)=0

We add all the numbers together, and all the variables

-4(a-4)-50=0

We multiply parentheses

-4a+16-50=0

We add all the numbers together, and all the variables

-4a-34=0

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

-4a=34

a=34/-4

a=-8+1/2

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