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-0.3+r=4.1
We simplify the equation to the form, which is simple to understand
-0.3+r=4.1
We move all terms containing r to the left and all other terms to the right.
+1r=+4.1 + 0.3
We simplify left and right side of the equation.
+1r=+4.4
We divide both sides of the equation by 1 to get r.
r=4.4
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