-4a-7=-2(3a-4)

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Solution for -4a-7=-2(3a-4) equation: 



-4a-7=-2(3a-4)

We move all terms to the left:

-4a-7-(-2(3a-4))=0



We calculate terms in parentheses: -(-2(3a-4)), so:

-2(3a-4)

We multiply parentheses

-6a+8

Back to the equation:

-(-6a+8)



We get rid of parentheses

-4a+6a-8-7=0

We add all the numbers together, and all the variables

2a-15=0

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

2a=15

a=15/2

a=7+1/2

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