InterviewSolution
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InterviewSolution
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6x+3y=6xy2x+4y=5xy |
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Answer» 6x+3y=6xy ____ eqn. 12x+4y=5xy_____ eqn. 2 6x+3y/xy=6 (from eqn. 1), 6x/xy+3y/xy=66/y+3/x=62x+4y/xy=5 (from eqn. 2)2x/xy+4y/xy=52/y+4/x=5Let 1/x be p and 1/y be qSo, 6q+3p=6______ eqn. 3 2q+4p=5______eqn. 4By elimination method Multiply eqn. 4 by 3 3*2q+4p=56q+12p=15 _______5 Now subtract eqn. 3 from 5 6q+3p=6 6q+12p=15 - - -______________ 0 +9p= 9 p=9/9 p= 1 Put the value of p in eqn. 42q+4*1=5 2q= 5-4 q=1/2p=1=1/x p=x=1q=1/2=1/yq=y=2 I don\'t no |
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