7y+9=-7y-9

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Solution for 7y+9=-7y-9 equation:



7y+9=-7y-9
We move all terms to the left:
7y+9-(-7y-9)=0
We get rid of parentheses
7y+7y+9+9=0
We add all the numbers together, and all the variables
14y+18=0
We move all terms containing y to the left, all other terms to the right
14y=-18
y=-18/14
y=-1+2/7

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