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63=-3x+5(-4x-15)
We simplify the equation to the form, which is simple to understand
63=-3x+5(-4x-15)
Reorder the terms in parentheses
63=-3x+(-20x-75)
Remove unnecessary parentheses
+63=-3x-20x-75
We move all terms containing x to the left and all other terms to the right.
+3x+20x=-75-63
We simplify left and right side of the equation.
+23x=-138
We divide both sides of the equation by 23 to get x.
x=-6
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