2r-6r=40

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Solution for 2r-6r=40 equation: 



2r-6r=40

We move all terms to the left:

2r-6r-(40)=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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