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Simplifying 9(4x + -7) = 3(12x + 5) Reorder the terms: 9(-7 + 4x) = 3(12x + 5) (-7 * 9 + 4x * 9) = 3(12x + 5) (-63 + 36x) = 3(12x + 5) Reorder the terms: -63 + 36x = 3(5 + 12x) -63 + 36x = (5 * 3 + 12x * 3) -63 + 36x = (15 + 36x) Add '-36x' to each side of the equation. -63 + 36x + -36x = 15 + 36x + -36x Combine like terms: 36x + -36x = 0 -63 + 0 = 15 + 36x + -36x -63 = 15 + 36x + -36x Combine like terms: 36x + -36x = 0 -63 = 15 + 0 -63 = 15 Solving -63 = 15 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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