-2=2(15-4a)

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Solution for -2=2(15-4a) equation: 



-2=2(15-4a)

We move all terms to the left:

-2-(2(15-4a))=0

We add all the numbers together, and all the variables

-(2(-4a+15))-2=0



We calculate terms in parentheses: -(2(-4a+15)), so:

2(-4a+15)

We multiply parentheses

-8a+30

Back to the equation:

-(-8a+30)



We get rid of parentheses

8a-30-2=0

We add all the numbers together, and all the variables

8a-32=0

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

8a=32

a=32/8

a=4

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