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3x+1-9=2(x+2)
We simplify the equation to the form, which is simple to understand
3x+1-9=2(x+2)
Reorder the terms in parentheses
3x+1-9=+(+2x+4)
Remove unnecessary parentheses
+3x+1-9=+2x+4
We move all terms containing x to the left and all other terms to the right.
+3x-2x=+4-1+9
We simplify left and right side of the equation.
+1x=+12
We divide both sides of the equation by 1 to get x.
x=12
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