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7x+4(3)=-18
We simplify the equation to the form, which is simple to understand
7x+4(3)=-18
Reorder the terms in parentheses
7x+(+12)=-18
Remove unnecessary parentheses
+7x+12=-18
We move all terms containing x to the left and all other terms to the right.
+7x=-18-12
We simplify left and right side of the equation.
+7x=-30
We divide both sides of the equation by 7 to get x.
x=-4.28571428571
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