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Solve by cross multiplication method:?3+ ?4= 1, 5?6-?3 = -7

Answer» X. Y. 1. 4. -1. 3. 4 -3. 7. 56. -3 ~ x. = y. = 1(4*7) - (-1*-3) (-1*56)-(3*7). (3*-3)-(4*56) X. = Y. = 1 28- 3 -56-21. -9-224 X. = Y. = 1 25 - 77. -233 = x= 25/-233 y=-77/-233


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