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Simplifying f(x + 1) = f(x) + 3 Reorder the terms: f(1 + x) = f(x) + 3 (1 * f + x * f) = f(x) + 3 (1f + fx) = f(x) + 3 Multiply f * x 1f + fx = fx + 3 Reorder the terms: 1f + fx = 3 + fx Add '-1fx' to each side of the equation. 1f + fx + -1fx = 3 + fx + -1fx Combine like terms: fx + -1fx = 0 1f + 0 = 3 + fx + -1fx 1f = 3 + fx + -1fx Combine like terms: fx + -1fx = 0 1f = 3 + 0 1f = 3 Solving 1f = 3 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by '1'. f = 3 Simplifying f = 3
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