2a-7=-a+2

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Solution for 2a-7=-a+2 equation: 



2a-7=-a+2

We move all terms to the left:

2a-7-(-a+2)=0

We add all the numbers together, and all the variables

2a-(-1a+2)-7=0

We get rid of parentheses

2a+1a-2-7=0

We add all the numbers together, and all the variables

3a-9=0

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

3a=9

a=9/3

a=3

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