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Simplifying 2x + -1(x + 3) = 5x + -1(7 + 4x) Reorder the terms: 2x + -1(3 + x) = 5x + -1(7 + 4x) 2x + (3 * -1 + x * -1) = 5x + -1(7 + 4x) 2x + (-3 + -1x) = 5x + -1(7 + 4x) Reorder the terms: -3 + 2x + -1x = 5x + -1(7 + 4x) Combine like terms: 2x + -1x = 1x -3 + 1x = 5x + -1(7 + 4x) -3 + 1x = 5x + (7 * -1 + 4x * -1) -3 + 1x = 5x + (-7 + -4x) Reorder the terms: -3 + 1x = -7 + 5x + -4x Combine like terms: 5x + -4x = 1x -3 + 1x = -7 + 1x Add '-1x' to each side of the equation. -3 + 1x + -1x = -7 + 1x + -1x Combine like terms: 1x + -1x = 0 -3 + 0 = -7 + 1x + -1x -3 = -7 + 1x + -1x Combine like terms: 1x + -1x = 0 -3 = -7 + 0 -3 = -7 Solving -3 = -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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