f(8)=f(8-2)+f(8-1)

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Solution for f(8)=f(8-2)+f(8-1) equation:


Simplifying
f(8) = f(8 + -2) + f(8 + -1)

Reorder the terms for easier multiplication:
8f = f(8 + -2) + f(8 + -1)

Combine like terms: 8 + -2 = 6
8f = f(6) + f(8 + -1)

Reorder the terms for easier multiplication:
8f = 6f + f(8 + -1)

Combine like terms: 8 + -1 = 7
8f = 6f + f(7)

Reorder the terms for easier multiplication:
8f = 6f + 7f

Combine like terms: 6f + 7f = 13f
8f = 13f

Solving
8f = 13f

Solving for variable 'f'.

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

Add '-13f' to each side of the equation.
8f + -13f = 13f + -13f

Combine like terms: 8f + -13f = -5f
-5f = 13f + -13f

Combine like terms: 13f + -13f = 0
-5f = 0

Divide each side by '-5'.
f = 0

Simplifying
f = 0

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