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12x+2=4(2x+1)-x+9
We simplify the equation to the form, which is simple to understand
12x+2=4(2x+1)-x+9
Reorder the terms in parentheses
12x+2=+(+8x+4)-x+9
Remove unnecessary parentheses
+12x+2=+8x+4-x+9
We move all terms containing x to the left and all other terms to the right.
+12x-8x+1x=+4+9-2
We simplify left and right side of the equation.
+5x=+11
We divide both sides of the equation by 5 to get x.
x=2.2
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