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Simplifying -4 + 7(x + -5) = 13x + 4 + -6x Reorder the terms: -4 + 7(-5 + x) = 13x + 4 + -6x -4 + (-5 * 7 + x * 7) = 13x + 4 + -6x -4 + (-35 + 7x) = 13x + 4 + -6x Combine like terms: -4 + -35 = -39 -39 + 7x = 13x + 4 + -6x Reorder the terms: -39 + 7x = 4 + 13x + -6x Combine like terms: 13x + -6x = 7x -39 + 7x = 4 + 7x Add '-7x' to each side of the equation. -39 + 7x + -7x = 4 + 7x + -7x Combine like terms: 7x + -7x = 0 -39 + 0 = 4 + 7x + -7x -39 = 4 + 7x + -7x Combine like terms: 7x + -7x = 0 -39 = 4 + 0 -39 = 4 Solving -39 = 4 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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