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