r-2+4=r+7+7-12

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Solution for r-2+4=r+7+7-12 equation:


r-2+4=r+7+7-12

We simplify the equation to the form, which is simple to understand 
r-2+4=r+7+7-12

We move all terms containing r to the left and all other terms to the right. 
+1r-1r=+7+7-12+2-4

We simplify left and right side of the equation. 
r=0

0=0

This equation is an identity, so all real numbers are solutions.

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