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2/6=r/420
We simplify the equation to the form, which is simple to understand
2/6=r/420
Simplifying:
+ 0.333333333333=r/420
Simplifying:
+ 0.333333333333=0.00238095238095r
We move all terms containing r to the left and all other terms to the right.
-0.00238095238095r=-0.333333333333
We simplify left and right side of the equation.
-0.00238095238095r=-0.333333333333
We divide both sides of the equation by -00.00238095238095 to get r.
r=140
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