3.8r+3.7r=75

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Solution for 3.8r+3.7r=75 equation:



3.8r+3.7r=75
We move all terms to the left:
3.8r+3.7r-(75)=0
We add all the numbers together, and all the variables
7.5r-75=0
We move all terms containing r to the left, all other terms to the right
7.5r=75
r=75/7.5
r=10

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