7r+20=49r

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Solution for 7r+20=49r equation:



7r+20=49r
We move all terms to the left:
7r+20-(49r)=0
We add all the numbers together, and all the variables
-42r+20=0
We move all terms containing r to the left, all other terms to the right
-42r=-20
r=-20/-42
r=10/21

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