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Simplifying (4 + x)(4 + y) = 79 Multiply (4 + x) * (4 + y) (4(4 + y) + x(4 + y)) = 79 ((4 * 4 + y * 4) + x(4 + y)) = 79 ((16 + 4y) + x(4 + y)) = 79 (16 + 4y + (4 * x + y * x)) = 79 (16 + 4y + (4x + xy)) = 79 Reorder the terms: (16 + 4x + xy + 4y) = 79 (16 + 4x + xy + 4y) = 79 Solving 16 + 4x + xy + 4y = 79 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-16' to each side of the equation. 16 + 4x + xy + -16 + 4y = 79 + -16 Reorder the terms: 16 + -16 + 4x + xy + 4y = 79 + -16 Combine like terms: 16 + -16 = 0 0 + 4x + xy + 4y = 79 + -16 4x + xy + 4y = 79 + -16 Combine like terms: 79 + -16 = 63 4x + xy + 4y = 63 Add '-4y' to each side of the equation. 4x + xy + 4y + -4y = 63 + -4y Combine like terms: 4y + -4y = 0 4x + xy + 0 = 63 + -4y 4x + xy = 63 + -4y Reorder the terms: -63 + 4x + xy + 4y = 63 + -4y + -63 + 4y Reorder the terms: -63 + 4x + xy + 4y = 63 + -63 + -4y + 4y Combine like terms: 63 + -63 = 0 -63 + 4x + xy + 4y = 0 + -4y + 4y -63 + 4x + xy + 4y = -4y + 4y Combine like terms: -4y + 4y = 0 -63 + 4x + xy + 4y = 0 The solution to this equation could not be determined.
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