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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

-2a+4a-(-(-1a-2)+3(a+4))=0

We add all the numbers together, and all the variables

2a-(-(-1a-2)+3(a+4))=0



We calculate terms in parentheses: -(-(-1a-2)+3(a+4)), so:

-(-1a-2)+3(a+4)

We multiply parentheses

-(-1a-2)+3a+12

We get rid of parentheses

1a+3a+2+12

We add all the numbers together, and all the variables

4a+14

Back to the equation:

-(4a+14)



We get rid of parentheses

2a-4a-14=0

We add all the numbers together, and all the variables

-2a-14=0

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

-2a=14

a=14/-2

a=-7

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