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Simplifying 42 = 3(-4x) + 6 Remove parenthesis around (-4x) 42 = 3 * -4x + 6 Multiply 3 * -4 42 = -12x + 6 Reorder the terms: 42 = 6 + -12x Solving 42 = 6 + -12x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12x' to each side of the equation. 42 + 12x = 6 + -12x + 12x Combine like terms: -12x + 12x = 0 42 + 12x = 6 + 0 42 + 12x = 6 Add '-42' to each side of the equation. 42 + -42 + 12x = 6 + -42 Combine like terms: 42 + -42 = 0 0 + 12x = 6 + -42 12x = 6 + -42 Combine like terms: 6 + -42 = -36 12x = -36 Divide each side by '12'. x = -3 Simplifying x = -3
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