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12x+8-15=-2(3x-83)
We simplify the equation to the form, which is simple to understand
12x+8-15=-2(3x-83)
Reorder the terms in parentheses
12x+8-15=+(-6x+166)
Remove unnecessary parentheses
+12x+8-15=-6x+166
We move all terms containing x to the left and all other terms to the right.
+12x+6x=+166-8+15
We simplify left and right side of the equation.
+18x=+173
We divide both sides of the equation by 18 to get x.
x=9.61111111111
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