-5r+12r-3=16r-21

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Solution for -5r+12r-3=16r-21 equation:


-5r+12r-3=16r-21

We simplify the equation to the form, which is simple to understand 
-5r+12r-3=16r-21

We move all terms containing r to the left and all other terms to the right. 
-5r+12r-16r=-21+3

We simplify left and right side of the equation. 
-9r=-18

We divide both sides of the equation by -9 to get r. 
r=2

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