4.2+r=9.4

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Solution for 4.2+r=9.4 equation: 



4.2+r=9.4

We move all terms to the left:

4.2+r-(9.4)=0

We add all the numbers together, and all the variables

r-5.2=0

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

r=5.2

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