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Simplifying 3(3x + -15) = 9(x + -15) Reorder the terms: 3(-15 + 3x) = 9(x + -15) (-15 * 3 + 3x * 3) = 9(x + -15) (-45 + 9x) = 9(x + -15) Reorder the terms: -45 + 9x = 9(-15 + x) -45 + 9x = (-15 * 9 + x * 9) -45 + 9x = (-135 + 9x) Add '-9x' to each side of the equation. -45 + 9x + -9x = -135 + 9x + -9x Combine like terms: 9x + -9x = 0 -45 + 0 = -135 + 9x + -9x -45 = -135 + 9x + -9x Combine like terms: 9x + -9x = 0 -45 = -135 + 0 -45 = -135 Solving -45 = -135 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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