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0.64+2.75r=11.70
We move all terms to the left:
0.64+2.75r-(11.70)=0
We add all the numbers together, and all the variables
2.75r+0.64-(11.7)=0
We add all the numbers together, and all the variables
2.75r-11.06=0
We move all terms containing r to the left, all other terms to the right
2.75r=11.06
r=11.06/2.75
r=4+0.06/2.75
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