2r+2=107-19r

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Solution for 2r+2=107-19r equation: 



2r+2=107-19r

We move all terms to the left:

2r+2-(107-19r)=0

We add all the numbers together, and all the variables

2r-(-19r+107)+2=0

We get rid of parentheses

2r+19r-107+2=0

We add all the numbers together, and all the variables

21r-105=0

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

21r=105

r=105/21

r=5

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