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Simplifying 3x + -2(5x + -4) = 16 + -7x Reorder the terms: 3x + -2(-4 + 5x) = 16 + -7x 3x + (-4 * -2 + 5x * -2) = 16 + -7x 3x + (8 + -10x) = 16 + -7x Reorder the terms: 8 + 3x + -10x = 16 + -7x Combine like terms: 3x + -10x = -7x 8 + -7x = 16 + -7x Add '7x' to each side of the equation. 8 + -7x + 7x = 16 + -7x + 7x Combine like terms: -7x + 7x = 0 8 + 0 = 16 + -7x + 7x 8 = 16 + -7x + 7x Combine like terms: -7x + 7x = 0 8 = 16 + 0 8 = 16 Solving 8 = 16 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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