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2x+3y=9 and 3x+4y=5 solve by sublimation method |
| Answer» 2x + 3y = 9 ........(1)3x + 4y = 5. .........(2)From (1): x= 9-3y\\2. .......(3)Substituting (3) in (2) we have:=3 ( 9-3y\\2) +4y = 5 =27 - 9y\\ 2 + 4y = 5=27- 9y +8y = 10 =-y = -17= y = 17Putting y=17 in (3) we have :x = 9-51\\2x= 42 \\ 2x = 21: x = 21 , y = 17 | |