2=4r+-2

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Solution for 2=4r+-2 equation:



2=4r+-2
We move all terms to the left:
2-(4r+-2)=0
We add all the numbers together, and all the variables
-(4r-2)+2=0
We get rid of parentheses
-4r+2+2=0
We add all the numbers together, and all the variables
-4r+4=0
We move all terms containing r to the left, all other terms to the right
-4r=-4
r=-4/-4
r=1

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