40-f=7.50

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Solution for 40-f=7.50 equation: 


Simplifying
40 + -1f = 7.50

Solving
40 + -1f = 7.50

Solving for variable 'f'.

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

Add '-40' to each side of the equation.
40 + -40 + -1f = 7.50 + -40

Combine like terms: 40 + -40 = 0
0 + -1f = 7.50 + -40
-1f = 7.50 + -40

Combine like terms: 7.50 + -40 = -32.5
-1f = -32.5

Divide each side by '-1'.
f = 32.5

Simplifying
f = 32.5

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