5.6(12.4r-9.7)=21.

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Solution for 5.6(12.4r-9.7)=21. equation: 



5.6(12.4r-9.7)=21.

We move all terms to the left:

5.6(12.4r-9.7)-(21.)=0

We add all the numbers together, and all the variables

5.6(12.4r-9.7)-21=0

We multiply parentheses

67.2r-54.32-21=0

We add all the numbers together, and all the variables

67.2r-75.32=0

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

67.2r=75.32

r=75.32/67.2

r=1+7.25/60

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