-5(3x-21)=2(x-7)-85

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Solution for -5(3x-21)=2(x-7)-85 equation:



-5(3x-21)=2(x-7)-85
We move all terms to the left:
-5(3x-21)-(2(x-7)-85)=0
We multiply parentheses
-15x-(2(x-7)-85)+105=0
We calculate terms in parentheses: -(2(x-7)-85), so:
2(x-7)-85
We multiply parentheses
2x-14-85
We add all the numbers together, and all the variables
2x-99
Back to the equation:
-(2x-99)
We get rid of parentheses
-15x-2x+99+105=0
We add all the numbers together, and all the variables
-17x+204=0
We move all terms containing x to the left, all other terms to the right
-17x=-204
x=-204/-17
x=+12

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