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Simplifying 2x + -3(4x + -4) = 42 Reorder the terms: 2x + -3(-4 + 4x) = 42 2x + (-4 * -3 + 4x * -3) = 42 2x + (12 + -12x) = 42 Reorder the terms: 12 + 2x + -12x = 42 Combine like terms: 2x + -12x = -10x 12 + -10x = 42 Solving 12 + -10x = 42 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 + -10x = 42 + -12 Combine like terms: 12 + -12 = 0 0 + -10x = 42 + -12 -10x = 42 + -12 Combine like terms: 42 + -12 = 30 -10x = 30 Divide each side by '-10'. x = -3 Simplifying x = -3
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