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Simplifying 3x + -4(-1x + 2) = 7x + -1 Reorder the terms: 3x + -4(2 + -1x) = 7x + -1 3x + (2 * -4 + -1x * -4) = 7x + -1 3x + (-8 + 4x) = 7x + -1 Reorder the terms: -8 + 3x + 4x = 7x + -1 Combine like terms: 3x + 4x = 7x -8 + 7x = 7x + -1 Reorder the terms: -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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