2(r-7)-r=-15+3

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Solution for 2(r-7)-r=-15+3 equation: 



2(r-7)-r=-15+3

We move all terms to the left:

2(r-7)-r-(-15+3)=0

We add all the numbers together, and all the variables

2(r-7)-r-(-12)=0

We add all the numbers together, and all the variables

-1r+2(r-7)+12=0

We multiply parentheses

-1r+2r-14+12=0

We add all the numbers together, and all the variables

r-2=0

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

r=2

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