2a=3a+7a-7

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Solution for 2a=3a+7a-7 equation: 



2a=3a+7a-7

We move all terms to the left:

2a-(3a+7a-7)=0

We add all the numbers together, and all the variables

2a-(10a-7)=0

We get rid of parentheses

2a-10a+7=0

We add all the numbers together, and all the variables

-8a+7=0

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

-8a=-7

a=-7/-8

a=7/8

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