0.4r+2.4r=81.2

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Solution for 0.4r+2.4r=81.2 equation: 


Simplifying
0.4r + 2.4r = 81.2

Combine like terms: 0.4r + 2.4r = 2.8r
2.8r = 81.2

Solving
2.8r = 81.2

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Divide each side by '2.8'.
r = 29

Simplifying
r = 29

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