2(-1)=3a+4

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Solution for 2(-1)=3a+4 equation: 



2(-1)=3a+4

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(3a+4)-2=0

We get rid of parentheses

-3a-4-2=0

We add all the numbers together, and all the variables

-3a-6=0

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

-3a=6

a=6/-3

a=-2

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