-12r+4r=100

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Solution for -12r+4r=100 equation:


-12r+4r=100

We simplify the equation to the form, which is simple to understand 
-12r+4r=100

We move all terms containing r to the left and all other terms to the right. 
-12r+4r=+100

We simplify left and right side of the equation. 
-8r=+100

We divide both sides of the equation by -8 to get r. 
r=-12.5

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