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(73+75+x)/2=77
We simplify the equation to the form, which is simple to understand
(73+75+x)/2=77
Simplifying terms in parentheses
(+148+1x)/2=77
Reorder the terms in parentheses
(+74 + 0.5x)=77
Remove unnecessary parentheses
+74 + 0.5x=77
We move all terms containing x to the left and all other terms to the right.
+ 0.5x=+77-74
We simplify left and right side of the equation.
+ 0.5x=+3
We divide both sides of the equation by 0.5 to get x.
x=6
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