-2+4r=38

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Solution for -2+4r=38 equation: 



-2+4r=38

We move all terms to the left:

-2+4r-(38)=0

We add all the numbers together, and all the variables

4r-40=0

We move all terms containing r to the left, all other terms to the right

4r=40

r=40/4

r=10

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