-7.8r=-42.12

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Solution for -7.8r=-42.12 equation: 



-7.8r=-42.12

We move all terms to the left:

-7.8r-(-42.12)=0

We add all the numbers together, and all the variables

-7.8r+42.12=0

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

-7.8r=-42.12

r=-42.12/-7.8

r=5+2.7857142857143/6.9642857142857

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