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