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Simplifying 7x + 3x + -4 = 10(x + -1) Reorder the terms: -4 + 7x + 3x = 10(x + -1) Combine like terms: 7x + 3x = 10x -4 + 10x = 10(x + -1) Reorder the terms: -4 + 10x = 10(-1 + x) -4 + 10x = (-1 * 10 + x * 10) -4 + 10x = (-10 + 10x) Add '-10x' to each side of the equation. -4 + 10x + -10x = -10 + 10x + -10x Combine like terms: 10x + -10x = 0 -4 + 0 = -10 + 10x + -10x -4 = -10 + 10x + -10x Combine like terms: 10x + -10x = 0 -4 = -10 + 0 -4 = -10 Solving -4 = -10 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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