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Simplifying 2x + -1(3x + -4) = 7 + -1x Reorder the terms: 2x + -1(-4 + 3x) = 7 + -1x 2x + (-4 * -1 + 3x * -1) = 7 + -1x 2x + (4 + -3x) = 7 + -1x Reorder the terms: 4 + 2x + -3x = 7 + -1x Combine like terms: 2x + -3x = -1x 4 + -1x = 7 + -1x Add 'x' to each side of the equation. 4 + -1x + x = 7 + -1x + x Combine like terms: -1x + x = 0 4 + 0 = 7 + -1x + x 4 = 7 + -1x + x Combine like terms: -1x + x = 0 4 = 7 + 0 4 = 7 Solving 4 = 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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