2r-7=-4

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Solution for 2r-7=-4 equation: 



2r-7=-4

We move all terms to the left:

2r-7-(-4)=0

We add all the numbers together, and all the variables

2r-3=0

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

2r=3

r=3/2

r=1+1/2

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