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Simplifying f(f(x)) = 25x + -18 Multiply f * x f(fx) = 25x + -18 Multiply f * fx f2x = 25x + -18 Reorder the terms: f2x = -18 + 25x Solving f2x = -18 + 25x Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by 'x'. f2 = -18x-1 + 25 Simplifying f2 = -18x-1 + 25 Reorder the terms: f2 = 25 + -18x-1 Reorder the terms: -25 + f2 + 18x-1 = 25 + -18x-1 + -25 + 18x-1 Reorder the terms: -25 + f2 + 18x-1 = 25 + -25 + -18x-1 + 18x-1 Combine like terms: 25 + -25 = 0 -25 + f2 + 18x-1 = 0 + -18x-1 + 18x-1 -25 + f2 + 18x-1 = -18x-1 + 18x-1 Combine like terms: -18x-1 + 18x-1 = 0 -25 + f2 + 18x-1 = 0 The solution to this equation could not be determined.
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