4+7r-r=-20

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Solution for 4+7r-r=-20 equation:



4+7r-r=-20
We move all terms to the left:
4+7r-r-(-20)=0
We add all the numbers together, and all the variables
6r+24=0
We move all terms containing r to the left, all other terms to the right
6r=-24
r=-24/6
r=-4

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