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Simplifying -42 = 3x Solving -42 = 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. -42 + -3x = 3x + -3x Combine like terms: 3x + -3x = 0 -42 + -3x = 0 Add '42' to each side of the equation. -42 + 42 + -3x = 0 + 42 Combine like terms: -42 + 42 = 0 0 + -3x = 0 + 42 -3x = 0 + 42 Combine like terms: 0 + 42 = 42 -3x = 42 Divide each side by '-3'. x = -14 Simplifying x = -14
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