3f+4r=12

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Solution for 3f+4r=12 equation: 


Simplifying
3f + 4r = 12

Solving
3f + 4r = 12

Solving for variable 'f'.

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

Add '-4r' to each side of the equation.
3f + 4r + -4r = 12 + -4r

Combine like terms: 4r + -4r = 0
3f + 0 = 12 + -4r
3f = 12 + -4r

Divide each side by '3'.
f = 4 + -1.333333333r

Simplifying
f = 4 + -1.333333333r

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