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15-2(7-x)+4x=0
We simplify the equation to the form, which is simple to understand
15-2(7-x)+4x=0
Reorder the terms in parentheses
15+(-14+2x)+4x=0
Remove unnecessary parentheses
+15-14+2x+4x=0
We move all terms containing x to the left and all other terms to the right.
+2x+4x=0-15+14
We simplify left and right side of the equation.
+6x=-1
We divide both sides of the equation by 6 to get x.
x=-0.16666666666667
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