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68=-4x+4(-3x-15)
We simplify the equation to the form, which is simple to understand
68=-4x+4(-3x-15)
Reorder the terms in parentheses
68=-4x+(-12x-60)
Remove unnecessary parentheses
+68=-4x-12x-60
We move all terms containing x to the left and all other terms to the right.
+4x+12x=-60-68
We simplify left and right side of the equation.
+16x=-128
We divide both sides of the equation by 16 to get x.
x=-8
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