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Simplifying 7x + 42 = 6x + 20 Reorder the terms: 42 + 7x = 6x + 20 Reorder the terms: 42 + 7x = 20 + 6x Solving 42 + 7x = 20 + 6x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6x' to each side of the equation. 42 + 7x + -6x = 20 + 6x + -6x Combine like terms: 7x + -6x = 1x 42 + 1x = 20 + 6x + -6x Combine like terms: 6x + -6x = 0 42 + 1x = 20 + 0 42 + 1x = 20 Add '-42' to each side of the equation. 42 + -42 + 1x = 20 + -42 Combine like terms: 42 + -42 = 0 0 + 1x = 20 + -42 1x = 20 + -42 Combine like terms: 20 + -42 = -22 1x = -22 Divide each side by '1'. x = -22 Simplifying x = -22
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