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Simplifying 20x + 42 = 30 + -4x Reorder the terms: 42 + 20x = 30 + -4x Solving 42 + 20x = 30 + -4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4x' to each side of the equation. 42 + 20x + 4x = 30 + -4x + 4x Combine like terms: 20x + 4x = 24x 42 + 24x = 30 + -4x + 4x Combine like terms: -4x + 4x = 0 42 + 24x = 30 + 0 42 + 24x = 30 Add '-42' to each side of the equation. 42 + -42 + 24x = 30 + -42 Combine like terms: 42 + -42 = 0 0 + 24x = 30 + -42 24x = 30 + -42 Combine like terms: 30 + -42 = -12 24x = -12 Divide each side by '24'. x = -0.5 Simplifying x = -0.5
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