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-(7-7y)=3(7y-7)-14y+14
We move all terms to the left:
-(7-7y)-(3(7y-7)-14y+14)=0
We add all the numbers together, and all the variables
-(-7y+7)-(3(7y-7)-14y+14)=0
We get rid of parentheses
7y-(3(7y-7)-14y+14)-7=0
We calculate terms in parentheses: -(3(7y-7)-14y+14), so:We get rid of parentheses
3(7y-7)-14y+14
We add all the numbers together, and all the variables
-14y+3(7y-7)+14
We multiply parentheses
-14y+21y-21+14
We add all the numbers together, and all the variables
7y-7
Back to the equation:
-(7y-7)
7y-7y+7-7=0
We add all the numbers together, and all the variables
=0
y=0/1
y=0
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