Solve for x: c - 1 -------- + d = cd x c - 1 ------- = cd - d {subtracted d from both sides} x c - 1 = x(cd - d) {multiplied both sides by x} c - 1 ---------- = x {divided both sides by cd - d} cd - d c -1 ---------- = x {factored d out of bottom} d(c - 1) 1 --- = x {cancelled c - 1 on top and bottom} d © Algebra House
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