5r+3f=80

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Solution for 5r+3f=80 equation: 


Simplifying
5r + 3f = 80

Reorder the terms:
3f + 5r = 80

Solving
3f + 5r = 80

Solving for variable 'f'.

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

Add '-5r' to each side of the equation.
3f + 5r + -5r = 80 + -5r

Combine like terms: 5r + -5r = 0
3f + 0 = 80 + -5r
3f = 80 + -5r

Divide each side by '3'.
f = 26.66666667 + -1.666666667r

Simplifying
f = 26.66666667 + -1.666666667r

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