5f+90=6f+9

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Solution for 5f+90=6f+9 equation:


Simplifying
5f + 90 = 6f + 9

Reorder the terms:
90 + 5f = 6f + 9

Reorder the terms:
90 + 5f = 9 + 6f

Solving
90 + 5f = 9 + 6f

Solving for variable 'f'.

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

Add '-6f' to each side of the equation.
90 + 5f + -6f = 9 + 6f + -6f

Combine like terms: 5f + -6f = -1f
90 + -1f = 9 + 6f + -6f

Combine like terms: 6f + -6f = 0
90 + -1f = 9 + 0
90 + -1f = 9

Add '-90' to each side of the equation.
90 + -90 + -1f = 9 + -90

Combine like terms: 90 + -90 = 0
0 + -1f = 9 + -90
-1f = 9 + -90

Combine like terms: 9 + -90 = -81
-1f = -81

Divide each side by '-1'.
f = 81

Simplifying
f = 81

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