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Simplifying -3x + 7x + -7 = 4(x + -4) + -3 Reorder the terms: -7 + -3x + 7x = 4(x + -4) + -3 Combine like terms: -3x + 7x = 4x -7 + 4x = 4(x + -4) + -3 Reorder the terms: -7 + 4x = 4(-4 + x) + -3 -7 + 4x = (-4 * 4 + x * 4) + -3 -7 + 4x = (-16 + 4x) + -3 Reorder the terms: -7 + 4x = -16 + -3 + 4x Combine like terms: -16 + -3 = -19 -7 + 4x = -19 + 4x Add '-4x' to each side of the equation. -7 + 4x + -4x = -19 + 4x + -4x Combine like terms: 4x + -4x = 0 -7 + 0 = -19 + 4x + -4x -7 = -19 + 4x + -4x Combine like terms: 4x + -4x = 0 -7 = -19 + 0 -7 = -19 Solving -7 = -19 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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