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Simplifying -6x + 2(x + 6) = 42 Reorder the terms: -6x + 2(6 + x) = 42 -6x + (6 * 2 + x * 2) = 42 -6x + (12 + 2x) = 42 Reorder the terms: 12 + -6x + 2x = 42 Combine like terms: -6x + 2x = -4x 12 + -4x = 42 Solving 12 + -4x = 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 + -4x = 42 + -12 Combine like terms: 12 + -12 = 0 0 + -4x = 42 + -12 -4x = 42 + -12 Combine like terms: 42 + -12 = 30 -4x = 30 Divide each side by '-4'. x = -7.5 Simplifying x = -7.5
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