-a+2+3a=4

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



-a+2+3a=4

We move all terms to the left:

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

We add all the numbers together, and all the variables

2a-2=0

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

2a=2

a=2/2

a=1

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