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Simplifying 21x + 42 = 11 + -1x + 2 Reorder the terms: 42 + 21x = 11 + -1x + 2 Reorder the terms: 42 + 21x = 11 + 2 + -1x Combine like terms: 11 + 2 = 13 42 + 21x = 13 + -1x Solving 42 + 21x = 13 + -1x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add 'x' to each side of the equation. 42 + 21x + x = 13 + -1x + x Combine like terms: 21x + x = 22x 42 + 22x = 13 + -1x + x Combine like terms: -1x + x = 0 42 + 22x = 13 + 0 42 + 22x = 13 Add '-42' to each side of the equation. 42 + -42 + 22x = 13 + -42 Combine like terms: 42 + -42 = 0 0 + 22x = 13 + -42 22x = 13 + -42 Combine like terms: 13 + -42 = -29 22x = -29 Divide each side by '22'. x = -1.318181818 Simplifying x = -1.318181818
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