7+2a=-2a-5a

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Solution for 7+2a=-2a-5a equation: 



7+2a=-2a-5a

We move all terms to the left:

7+2a-(-2a-5a)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

2a+7a+7=0

We add all the numbers together, and all the variables

9a+7=0

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

9a=-7

a=-7/9

a=-7/9

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