70-f=69

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Solution for 70-f=69 equation: 


Simplifying
70 + -1f = 69

Solving
70 + -1f = 69

Solving for variable 'f'.

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

Add '-70' to each side of the equation.
70 + -70 + -1f = 69 + -70

Combine like terms: 70 + -70 = 0
0 + -1f = 69 + -70
-1f = 69 + -70

Combine like terms: 69 + -70 = -1
-1f = -1

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

Simplifying
f = 1

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