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(x+9)/2=3
We simplify the equation to the form, which is simple to understand
(x+9)/2=3
Reorder the terms in parentheses
( + 0.5x+4.5)=3
Remove unnecessary parentheses
+ 0.5x+4.5=3
We move all terms containing x to the left and all other terms to the right.
+ 0.5x=+3-4.5
We simplify left and right side of the equation.
+ 0.5x=-1.5
We divide both sides of the equation by 0.5 to get x.
x=-3
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