3r+-7=-1

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Solution for 3r+-7=-1 equation:



3r+-7=-1
We move all terms to the left:
3r+-7-(-1)=0
We add all the numbers together, and all the variables
3r-6=0
We move all terms containing r to the left, all other terms to the right
3r=6
r=6/3
r=2

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