12-1.8r=1

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Solution for 12-1.8r=1 equation:



12-1.8r=1
We move all terms to the left:
12-1.8r-(1)=0
We add all the numbers together, and all the variables
-1.8r+11=0
We move all terms containing r to the left, all other terms to the right
-1.8r=-11
r=-11/-1.8
r=6+0.2/1.8

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