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A manufacturing supervisor uses the system {13x−12y=1,;34x−y=52}\left\{\frac{1}{3}x - \frac{1}{2}y = 1,; \frac{3}{4}x - y = \frac{5}{2}\right\} to calculate the required weights of two raw materials. After clearing the fractions to obtain the equivalent equations 2x−3y=6{}2x - 3y = 6 and 3x−4y=10{}3x - 4y = 10, the supervisor intends to eliminate xx by adding the equations. If the first equation is multiplied by 3, the supervisor must multiply the second equation by ____ to create opposite coefficients for xx.

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Updated 2026-09-19

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