f(2)-2f(1)=

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Solution for f(2)-2f(1)= equation: 


Simplifying
f(2) + -2f(1) = 0

Reorder the terms for easier multiplication:
2f + -2f(1) = 0

Reorder the terms for easier multiplication:
2f + -2 * 1f = 0

Multiply -2 * 1
2f + -2f = 0

Combine like terms: 2f + -2f = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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