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Simplifying 9x3u + 42x2y + 49xy = 0 Reorder the terms: 9ux3 + 49xy + 42x2y = 0 Solving 9ux3 + 49xy + 42x2y = 0 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-49xy' to each side of the equation. 9ux3 + 49xy + -49xy + 42x2y = 0 + -49xy Combine like terms: 49xy + -49xy = 0 9ux3 + 0 + 42x2y = 0 + -49xy 9ux3 + 42x2y = 0 + -49xy Remove the zero: 9ux3 + 42x2y = -49xy Add '-42x2y' to each side of the equation. 9ux3 + 42x2y + -42x2y = -49xy + -42x2y Combine like terms: 42x2y + -42x2y = 0 9ux3 + 0 = -49xy + -42x2y 9ux3 = -49xy + -42x2y Divide each side by '9x3'. u = -5.444444444x-2y + -4.666666667x-1y Simplifying u = -5.444444444x-2y + -4.666666667x-1y
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