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Simplifying 8x + -4(3x + -4) = 15 + -4x Reorder the terms: 8x + -4(-4 + 3x) = 15 + -4x 8x + (-4 * -4 + 3x * -4) = 15 + -4x 8x + (16 + -12x) = 15 + -4x Reorder the terms: 16 + 8x + -12x = 15 + -4x Combine like terms: 8x + -12x = -4x 16 + -4x = 15 + -4x Add '4x' to each side of the equation. 16 + -4x + 4x = 15 + -4x + 4x Combine like terms: -4x + 4x = 0 16 + 0 = 15 + -4x + 4x 16 = 15 + -4x + 4x Combine like terms: -4x + 4x = 0 16 = 15 + 0 16 = 15 Solving 16 = 15 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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