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31=-3(4x+5)
We simplify the equation to the form, which is simple to understand
31=-3(4x+5)
Reorder the terms in parentheses
31=+(-12x-15)
Remove unnecessary parentheses
+31=-12x-15
We move all terms containing x to the left and all other terms to the right.
+12x=-15-31
We simplify left and right side of the equation.
+12x=-46
We divide both sides of the equation by 012 to get x.
x=-3.83333333333
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