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(140+x)/3=80
We simplify the equation to the form, which is simple to understand
(140+x)/3=80
Reorder the terms in parentheses
(+46.6666666667 + 0.333333333333x)=80
Remove unnecessary parentheses
+46.6666666667 + 0.333333333333x=80
We move all terms containing x to the left and all other terms to the right.
+ 0.333333333333x=+80-46.6666666667
We simplify left and right side of the equation.
+ 0.333333333333x=+33.3333333333
We divide both sides of the equation by 0.333333333333 to get x.
x=99.9999999999
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