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Simplifying 21 * 2x + 8 + 21 = 27 * 27 + x Multiply 21 * 2 42x + 8 + 21 = 27 * 27 + x Reorder the terms: 8 + 21 + 42x = 27 * 27 + x Combine like terms: 8 + 21 = 29 29 + 42x = 27 * 27 + x Multiply 27 * 27 29 + 42x = 729 + x Solving 29 + 42x = 729 + x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. 29 + 42x + -1x = 729 + x + -1x Combine like terms: 42x + -1x = 41x 29 + 41x = 729 + x + -1x Combine like terms: x + -1x = 0 29 + 41x = 729 + 0 29 + 41x = 729 Add '-29' to each side of the equation. 29 + -29 + 41x = 729 + -29 Combine like terms: 29 + -29 = 0 0 + 41x = 729 + -29 41x = 729 + -29 Combine like terms: 729 + -29 = 700 41x = 700 Divide each side by '41'. x = 17.07317073 Simplifying x = 17.07317073
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