3-5f-7+3r=9

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Solution for 3-5f-7+3r=9 equation:


Simplifying
3 + -5f + -7 + 3r = 9

Reorder the terms:
3 + -7 + -5f + 3r = 9

Combine like terms: 3 + -7 = -4
-4 + -5f + 3r = 9

Solving
-4 + -5f + 3r = 9

Solving for variable 'f'.

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

Add '4' to each side of the equation.
-4 + -5f + 4 + 3r = 9 + 4

Reorder the terms:
-4 + 4 + -5f + 3r = 9 + 4

Combine like terms: -4 + 4 = 0
0 + -5f + 3r = 9 + 4
-5f + 3r = 9 + 4

Combine like terms: 9 + 4 = 13
-5f + 3r = 13

Add '-3r' to each side of the equation.
-5f + 3r + -3r = 13 + -3r

Combine like terms: 3r + -3r = 0
-5f + 0 = 13 + -3r
-5f = 13 + -3r

Divide each side by '-5'.
f = -2.6 + 0.6r

Simplifying
f = -2.6 + 0.6r

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