2a+3=a-4

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



2a+3=a-4

We move all terms to the left:

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

We get rid of parentheses

2a-a+4+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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