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Simplifying 42 + -5x = 13x + 20 Reorder the terms: 42 + -5x = 20 + 13x Solving 42 + -5x = 20 + 13x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13x' to each side of the equation. 42 + -5x + -13x = 20 + 13x + -13x Combine like terms: -5x + -13x = -18x 42 + -18x = 20 + 13x + -13x Combine like terms: 13x + -13x = 0 42 + -18x = 20 + 0 42 + -18x = 20 Add '-42' to each side of the equation. 42 + -42 + -18x = 20 + -42 Combine like terms: 42 + -42 = 0 0 + -18x = 20 + -42 -18x = 20 + -42 Combine like terms: 20 + -42 = -22 -18x = -22 Divide each side by '-18'. x = 1.222222222 Simplifying x = 1.222222222
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