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1/2+r=1/4
We simplify the equation to the form, which is simple to understand
1/2+r=1/4
We move all terms containing r to the left and all other terms to the right.
+1r=0.25-0.5
We simplify left and right side of the equation.
+1r=-0.25
We divide both sides of the equation by 1 to get r.
r=-0.25
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