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4/x=x/(x+3)
We simplify the equation to the form, which is simple to understand
4/x=x/(x+3)
Reorder the terms in parentheses
/x=+(+1 + 0.33333333333333x)
Remove unnecessary parentheses
+/x=+1 + 0.33333333333333x
We move all terms containing x to the left and all other terms to the right.
+1x-0.33333333333333x=+1
We simplify left and right side of the equation.
+ 0.66666666666667x=+1
We divide both sides of the equation by 0.66666666666667 to get x.
x=1.5
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