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Simplifying f(x + 4) = 4x + -9 Reorder the terms: f(4 + x) = 4x + -9 (4 * f + x * f) = 4x + -9 (4f + fx) = 4x + -9 Reorder the terms: 4f + fx = -9 + 4x Solving 4f + fx = -9 + 4x Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Reorder the terms: 9 + 4f + fx + -4x = -9 + 4x + 9 + -4x Reorder the terms: 9 + 4f + fx + -4x = -9 + 9 + 4x + -4x Combine like terms: -9 + 9 = 0 9 + 4f + fx + -4x = 0 + 4x + -4x 9 + 4f + fx + -4x = 4x + -4x Combine like terms: 4x + -4x = 0 9 + 4f + fx + -4x = 0 The solution to this equation could not be determined.
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