4.2r=71.4

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Solution for 4.2r=71.4 equation: 



4.2r=71.4

We move all terms to the left:

4.2r-(71.4)=0

We add all the numbers together, and all the variables

4.2r-71.4=0

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

4.2r=71.4

r=71.4/4.2

r=17

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