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(94+84+94+78+78+92+x)/6=90
We simplify the equation to the form, which is simple to understand
(94+84+94+78+78+92+x)/6=90
Reorder the terms in parentheses
(+86.666666666667 + 0.16666666666667x)=90
Remove unnecessary parentheses
+86.666666666667 + 0.16666666666667x=90
We move all terms containing x to the left and all other terms to the right.
+ 0.16666666666667x=+90-86.666666666667
We simplify left and right side of the equation.
+ 0.16666666666667x=+3.333333333333
We divide both sides of the equation by 0.16666666666667 to get x.
x=19.999999999998
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