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

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



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

We move all terms to the left:

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



We calculate terms in parentheses: -(-2(2a+5)), so:

-2(2a+5)

We multiply parentheses

-4a-10

Back to the equation:

-(-4a-10)



We get rid of parentheses

-3a+4a+10-3=0

We add all the numbers together, and all the variables

a+7=0

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

a=-7

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