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Simplifying 9(2x + -1) = 3(6x + -7) Reorder the terms: 9(-1 + 2x) = 3(6x + -7) (-1 * 9 + 2x * 9) = 3(6x + -7) (-9 + 18x) = 3(6x + -7) Reorder the terms: -9 + 18x = 3(-7 + 6x) -9 + 18x = (-7 * 3 + 6x * 3) -9 + 18x = (-21 + 18x) Add '-18x' to each side of the equation. -9 + 18x + -18x = -21 + 18x + -18x Combine like terms: 18x + -18x = 0 -9 + 0 = -21 + 18x + -18x -9 = -21 + 18x + -18x Combine like terms: 18x + -18x = 0 -9 = -21 + 0 -9 = -21 Solving -9 = -21 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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