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Simplifying -7(x + -3) = -2(x + 3) + -5x Reorder the terms: -7(-3 + x) = -2(x + 3) + -5x (-3 * -7 + x * -7) = -2(x + 3) + -5x (21 + -7x) = -2(x + 3) + -5x Reorder the terms: 21 + -7x = -2(3 + x) + -5x 21 + -7x = (3 * -2 + x * -2) + -5x 21 + -7x = (-6 + -2x) + -5x Combine like terms: -2x + -5x = -7x 21 + -7x = -6 + -7x Add '7x' to each side of the equation. 21 + -7x + 7x = -6 + -7x + 7x Combine like terms: -7x + 7x = 0 21 + 0 = -6 + -7x + 7x 21 = -6 + -7x + 7x Combine like terms: -7x + 7x = 0 21 = -6 + 0 21 = -6 Solving 21 = -6 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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