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