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Simplifying If(x + 3) + 3(x + -1) = 20 Reorder the terms: fI(3 + x) + 3(x + -1) = 20 (3 * fI + x * fI) + 3(x + -1) = 20 (3fI + fxI) + 3(x + -1) = 20 Reorder the terms: 3fI + fxI + 3(-1 + x) = 20 3fI + fxI + (-1 * 3 + x * 3) = 20 3fI + fxI + (-3 + 3x) = 20 Reorder the terms: -3 + 3fI + fxI + 3x = 20 Solving -3 + 3fI + fxI + 3x = 20 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3fI + fxI + 3 + 3x = 20 + 3 Reorder the terms: -3 + 3 + 3fI + fxI + 3x = 20 + 3 Combine like terms: -3 + 3 = 0 0 + 3fI + fxI + 3x = 20 + 3 3fI + fxI + 3x = 20 + 3 Combine like terms: 20 + 3 = 23 3fI + fxI + 3x = 23 Add '-3x' to each side of the equation. 3fI + fxI + 3x + -3x = 23 + -3x Combine like terms: 3x + -3x = 0 3fI + fxI + 0 = 23 + -3x 3fI + fxI = 23 + -3x Reorder the terms: -23 + 3fI + fxI + 3x = 23 + -3x + -23 + 3x Reorder the terms: -23 + 3fI + fxI + 3x = 23 + -23 + -3x + 3x Combine like terms: 23 + -23 = 0 -23 + 3fI + fxI + 3x = 0 + -3x + 3x -23 + 3fI + fxI + 3x = -3x + 3x Combine like terms: -3x + 3x = 0 -23 + 3fI + fxI + 3x = 0 The solution to this equation could not be determined.
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