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Simplifying (5 + x)(4 + y) = 300 Multiply (5 + x) * (4 + y) (5(4 + y) + x(4 + y)) = 300 ((4 * 5 + y * 5) + x(4 + y)) = 300 ((20 + 5y) + x(4 + y)) = 300 (20 + 5y + (4 * x + y * x)) = 300 (20 + 5y + (4x + xy)) = 300 Reorder the terms: (20 + 4x + xy + 5y) = 300 (20 + 4x + xy + 5y) = 300 Solving 20 + 4x + xy + 5y = 300 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + 4x + xy + -20 + 5y = 300 + -20 Reorder the terms: 20 + -20 + 4x + xy + 5y = 300 + -20 Combine like terms: 20 + -20 = 0 0 + 4x + xy + 5y = 300 + -20 4x + xy + 5y = 300 + -20 Combine like terms: 300 + -20 = 280 4x + xy + 5y = 280 Add '-5y' to each side of the equation. 4x + xy + 5y + -5y = 280 + -5y Combine like terms: 5y + -5y = 0 4x + xy + 0 = 280 + -5y 4x + xy = 280 + -5y Reorder the terms: -280 + 4x + xy + 5y = 280 + -5y + -280 + 5y Reorder the terms: -280 + 4x + xy + 5y = 280 + -280 + -5y + 5y Combine like terms: 280 + -280 = 0 -280 + 4x + xy + 5y = 0 + -5y + 5y -280 + 4x + xy + 5y = -5y + 5y Combine like terms: -5y + 5y = 0 -280 + 4x + xy + 5y = 0 The solution to this equation could not be determined.
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