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8.4(3.1r-2.35)=-3.402+2.7r
We simplify the equation to the form, which is simple to understand
8.4(3.1r-2.35)=-3.402+2.7r
Reorder the terms in parentheses
+(+26.04r-19.74)=-3.402+2.7r
Remove unnecessary parentheses
+26.04r-19.74=-3.402+2.7r
We move all terms containing r to the left and all other terms to the right.
+26.04r-2.7r=-3.402+19.74
We simplify left and right side of the equation.
+23.34r=+16.338
We divide both sides of the equation by 23.34 to get r.
r=0.7
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