210=r+520

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Solution for 210=r+520 equation:



210=r+520
We move all terms to the left:
210-(r+520)=0
We get rid of parentheses
-r-520+210=0
We add all the numbers together, and all the variables
-1r-310=0
We move all terms containing r to the left, all other terms to the right
-r=310
r=310/-1
r=-310

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