120=r*3

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Solution for 120=r*3 equation:


120=r*3

We simplify the equation to the form, which is simple to understand 
120=r*3

Simplifying:
120=+3r

We move all terms containing r to the left and all other terms to the right. 
-3r=-120

We simplify left and right side of the equation. 
-3r=-120

We divide both sides of the equation by -03 to get r. 
r=40

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