3-2r=4

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Solution for 3-2r=4 equation: 



3-2r=4

We move all terms to the left:

3-2r-(4)=0

We add all the numbers together, and all the variables

-2r-1=0

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

-2r=1

r=1/-2

r=-1/2

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