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Simplifying 2x + -45 = 42 Reorder the terms: -45 + 2x = 42 Solving -45 + 2x = 42 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '45' to each side of the equation. -45 + 45 + 2x = 42 + 45 Combine like terms: -45 + 45 = 0 0 + 2x = 42 + 45 2x = 42 + 45 Combine like terms: 42 + 45 = 87 2x = 87 Divide each side by '2'. x = 43.5 Simplifying x = 43.5
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