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Simplifying -2x + 3(x + -4) = -20 Reorder the terms: -2x + 3(-4 + x) = -20 -2x + (-4 * 3 + x * 3) = -20 -2x + (-12 + 3x) = -20 Reorder the terms: -12 + -2x + 3x = -20 Combine like terms: -2x + 3x = 1x -12 + 1x = -20 Solving -12 + 1x = -20 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + 1x = -20 + 12 Combine like terms: -12 + 12 = 0 0 + 1x = -20 + 12 1x = -20 + 12 Combine like terms: -20 + 12 = -8 1x = -8 Divide each side by '1'. x = -8 Simplifying x = -8
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