9+a=-2a-9-7a

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Solution for 9+a=-2a-9-7a equation:



9+a=-2a-9-7a
We move all terms to the left:
9+a-(-2a-9-7a)=0
We add all the numbers together, and all the variables
a-(-9a-9)+9=0
We get rid of parentheses
a+9a+9+9=0
We add all the numbers together, and all the variables
10a+18=0
We move all terms containing a to the left, all other terms to the right
10a=-18
a=-18/10
a=-1+4/5

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