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Simplifying x + 2f(x) = 13 Multiply f * x x + 2fx = 13 Reorder the terms: 2fx + x = 13 Solving 2fx + x = 13 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '-1x' to each side of the equation. 2fx + x + -1x = 13 + -1x Combine like terms: x + -1x = 0 2fx + 0 = 13 + -1x 2fx = 13 + -1x Divide each side by '2x'. f = 6.5x-1 + -0.5 Simplifying f = 6.5x-1 + -0.5 Reorder the terms: f = -0.5 + 6.5x-1
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