67-f=20

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Solution for 67-f=20 equation:


Simplifying
67 + -1f = 20

Solving
67 + -1f = 20

Solving for variable 'f'.

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

Add '-67' to each side of the equation.
67 + -67 + -1f = 20 + -67

Combine like terms: 67 + -67 = 0
0 + -1f = 20 + -67
-1f = 20 + -67

Combine like terms: 20 + -67 = -47
-1f = -47

Divide each side by '-1'.
f = 47

Simplifying
f = 47

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