84=6+f

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Solution for 84=6+f equation:


Simplifying
84 = 6 + f

Solving
84 = 6 + f

Solving for variable 'f'.

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

Add '-1f' to each side of the equation.
84 + -1f = 6 + f + -1f

Combine like terms: f + -1f = 0
84 + -1f = 6 + 0
84 + -1f = 6

Add '-84' to each side of the equation.
84 + -84 + -1f = 6 + -84

Combine like terms: 84 + -84 = 0
0 + -1f = 6 + -84
-1f = 6 + -84

Combine like terms: 6 + -84 = -78
-1f = -78

Divide each side by '-1'.
f = 78

Simplifying
f = 78

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