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.60+r=3.40
We simplify the equation to the form, which is simple to understand
.60+r=3.40
We move all terms containing r to the left and all other terms to the right.
+1r=+3.4-0.6
We simplify left and right side of the equation.
+1r=+2.8
We divide both sides of the equation by 1 to get r.
r=2.8
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