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Simplifying -3(6x + -3) + 7 = -18x Reorder the terms: -3(-3 + 6x) + 7 = -18x (-3 * -3 + 6x * -3) + 7 = -18x (9 + -18x) + 7 = -18x Reorder the terms: 9 + 7 + -18x = -18x Combine like terms: 9 + 7 = 16 16 + -18x = -18x Add '18x' to each side of the equation. 16 + -18x + 18x = -18x + 18x Combine like terms: -18x + 18x = 0 16 + 0 = -18x + 18x 16 = -18x + 18x Combine like terms: -18x + 18x = 0 16 = 0 Solving 16 = 0 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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