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Simplifying 3(4x + 3) + -2 = 12x + -7 Reorder the terms: 3(3 + 4x) + -2 = 12x + -7 (3 * 3 + 4x * 3) + -2 = 12x + -7 (9 + 12x) + -2 = 12x + -7 Reorder the terms: 9 + -2 + 12x = 12x + -7 Combine like terms: 9 + -2 = 7 7 + 12x = 12x + -7 Reorder the terms: 7 + 12x = -7 + 12x Add '-12x' to each side of the equation. 7 + 12x + -12x = -7 + 12x + -12x Combine like terms: 12x + -12x = 0 7 + 0 = -7 + 12x + -12x 7 = -7 + 12x + -12x Combine like terms: 12x + -12x = 0 7 = -7 + 0 7 = -7 Solving 7 = -7 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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