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x / (10-x) = 67,5/22,5
We simplify the equation to the form, which is simple to understand
x/(10-x)=67,5/22,5
Reorder the terms in parentheses
+( + 0.1x-1)=+3
Remove unnecessary parentheses
+ 0.1x-1=+3
We move all terms containing x to the left and all other terms to the right.
+ 0.1x=+3+1
We simplify left and right side of the equation.
+ 0.1x=+4
We divide both sides of the equation by 0.1 to get x.
x=40
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