4r+2r=42

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Solution for 4r+2r=42 equation:



4r+2r=42
We move all terms to the left:
4r+2r-(42)=0
We add all the numbers together, and all the variables
6r-42=0
We move all terms containing r to the left, all other terms to the right
6r=42
r=42/6
r=7

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