2r+1+(-4r)=7

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Solution for 2r+1+(-4r)=7 equation: 



2r+1+(-4r)=7

We move all terms to the left:

2r+1+(-4r)-(7)=0

We add all the numbers together, and all the variables

2r+(-4r)-6=0

We get rid of parentheses

2r-4r-6=0

We add all the numbers together, and all the variables

-2r-6=0

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

-2r=6

r=6/-2

r=-3

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