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7(2x+1)-x+9=0
We simplify the equation to the form, which is simple to understand
7(2x+1)-x+9=0
Reorder the terms in parentheses
+(+14x+7)-x+9=0
Remove unnecessary parentheses
+14x+7-x+9=0
We move all terms containing x to the left and all other terms to the right.
+14x-1x=0-7-9
We simplify left and right side of the equation.
+13x=-16
We divide both sides of the equation by 13 to get x.
x=-1.23076923077
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