12r+(-10r)-5r-(-4r)=10

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Solution for 12r+(-10r)-5r-(-4r)=10 equation:


12r+(-10r)-5r-(-4r)=10

We simplify the equation to the form, which is simple to understand 
12r+(-10r)-5r-(-4r)=10

Remove unnecessary parentheses
+12r-10r-5r-(-4r+)=+10

Remove unnecessary parentheses
12r-10r-5r+4r=10

We move all terms containing r to the left and all other terms to the right. 
+12r-10r-5r+4r=+10

We simplify left and right side of the equation. 
+1r=+10

We divide both sides of the equation by 1 to get r. 
r=10

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