1+9f=91

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Solution for 1+9f=91 equation: 


Simplifying
1 + 9f = 91

Solving
1 + 9f = 91

Solving for variable 'f'.

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

Add '-1' to each side of the equation.
1 + -1 + 9f = 91 + -1

Combine like terms: 1 + -1 = 0
0 + 9f = 91 + -1
9f = 91 + -1

Combine like terms: 91 + -1 = 90
9f = 90

Divide each side by '9'.
f = 10

Simplifying
f = 10

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