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-92=-7(7-r)+6
We move all terms to the left:
-92-(-7(7-r)+6)=0
We add all the numbers together, and all the variables
-(-7(-1r+7)+6)-92=0
We calculate terms in parentheses: -(-7(-1r+7)+6), so:We get rid of parentheses
-7(-1r+7)+6
We multiply parentheses
7r-49+6
We add all the numbers together, and all the variables
7r-43
Back to the equation:
-(7r-43)
-7r+43-92=0
We add all the numbers together, and all the variables
-7r-49=0
We move all terms containing r to the left, all other terms to the right
-7r=49
r=49/-7
r=-7
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