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Simplifying 10 = x(21 + -2y) 10 = (21 * x + -2y * x) 10 = (21x + -2xy) Solving 10 = 21x + -2xy Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21x' to each side of the equation. 10 + -21x = 21x + -21x + -2xy Combine like terms: 21x + -21x = 0 10 + -21x = 0 + -2xy 10 + -21x = -2xy Add '2xy' to each side of the equation. 10 + -21x + 2xy = -2xy + 2xy Combine like terms: -2xy + 2xy = 0 10 + -21x + 2xy = 0 Add '-10' to each side of the equation. 10 + -21x + -10 + 2xy = 0 + -10 Reorder the terms: 10 + -10 + -21x + 2xy = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -21x + 2xy = 0 + -10 -21x + 2xy = 0 + -10 Combine like terms: 0 + -10 = -10 -21x + 2xy = -10 Reorder the terms: 10 + -21x + 2xy = -10 + 10 Combine like terms: -10 + 10 = 0 10 + -21x + 2xy = 0 The solution to this equation could not be determined.
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