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Solve the equation by subtuition method3x-5y-4=09x=2y+7 |
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Answer» Thnkew 3x - 5y - 4 = 0 .....(1)9x = 2y + 7 .......(2)So multiply equation 1 by 3 to get9x - 15y - 12 = 0 ......... (3)Put (2) in (3)2y + 7 - 15y - 12 = 0- 13y - 5 = 0- 13y = 5y = 5/-13Put value of y in (2)9x = 2(5/-13) + 79x = - 10/13 + 79x = (-10+ 91)/139x = 81/13x = 9/13 |
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