7.4r-(-2r)=9

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Solution for 7.4r-(-2r)=9 equation: 



7.4r-(-2r)=9

We move all terms to the left:

7.4r-(-2r)-(9)=0

We get rid of parentheses

7.4r+2r-9=0

We add all the numbers together, and all the variables

9.4r-9=0

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

9.4r=9

r=9/9.4

r=1/1.0444444444444

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