5.5r+r=90

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Solution for 5.5r+r=90 equation: 


Simplifying
5.5r + r = 90

Combine like terms: 5.5r + r = 6.5r
6.5r = 90

Solving
6.5r = 90

Solving for variable 'r'.

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

Divide each side by '6.5'.
r = 13.84615385

Simplifying
r = 13.84615385

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