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-(7-2x)+7=-(7-2x)+7=-7
We move all terms to the left:
-(7-2x)+7-(-(7-2x)+7)=0
We add all the numbers together, and all the variables
-(-2x+7)-(-(-2x+7)+7)+7=0
We get rid of parentheses
2x-(-(-2x+7)+7)-7+7=0
We calculate terms in parentheses: -(-(-2x+7)+7), so:We add all the numbers together, and all the variables
-(-2x+7)+7
We get rid of parentheses
2x-7+7
We add all the numbers together, and all the variables
2x
Back to the equation:
-(2x)
=0
x=0/1
x=0
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