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Simplifying 4x + -9 = 4(x + -1) + 11 Reorder the terms: -9 + 4x = 4(x + -1) + 11 Reorder the terms: -9 + 4x = 4(-1 + x) + 11 -9 + 4x = (-1 * 4 + x * 4) + 11 -9 + 4x = (-4 + 4x) + 11 Reorder the terms: -9 + 4x = -4 + 11 + 4x Combine like terms: -4 + 11 = 7 -9 + 4x = 7 + 4x Add '-4x' to each side of the equation. -9 + 4x + -4x = 7 + 4x + -4x Combine like terms: 4x + -4x = 0 -9 + 0 = 7 + 4x + -4x -9 = 7 + 4x + -4x Combine like terms: 4x + -4x = 0 -9 = 7 + 0 -9 = 7 Solving -9 = 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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