4-2r=18

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Solution for 4-2r=18 equation:



4-2r=18
We move all terms to the left:
4-2r-(18)=0
We add all the numbers together, and all the variables
-2r-14=0
We move all terms containing r to the left, all other terms to the right
-2r=14
r=14/-2
r=-7

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