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Simplifying 7(x + -1) + -1 = 4x + 3(-1 + x) Reorder the terms: 7(-1 + x) + -1 = 4x + 3(-1 + x) (-1 * 7 + x * 7) + -1 = 4x + 3(-1 + x) (-7 + 7x) + -1 = 4x + 3(-1 + x) Reorder the terms: -7 + -1 + 7x = 4x + 3(-1 + x) Combine like terms: -7 + -1 = -8 -8 + 7x = 4x + 3(-1 + x) -8 + 7x = 4x + (-1 * 3 + x * 3) -8 + 7x = 4x + (-3 + 3x) Reorder the terms: -8 + 7x = -3 + 4x + 3x Combine like terms: 4x + 3x = 7x -8 + 7x = -3 + 7x Add '-7x' to each side of the equation. -8 + 7x + -7x = -3 + 7x + -7x Combine like terms: 7x + -7x = 0 -8 + 0 = -3 + 7x + -7x -8 = -3 + 7x + -7x Combine like terms: 7x + -7x = 0 -8 = -3 + 0 -8 = -3 Solving -8 = -3 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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