solve 4x+6/y=15 ,3x-4/y=7
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63
4 x + 6 /Y= 15
3 x- 4 /Y = 7
1/x=a
1/y=b
4a+6y=15
3a-4a=7
4a+6y=15 ×4
3a-4a=7×6
16a+24b =60
18a-24b=42
-------------------
34a=102
a=3
put a=3 in b
16×3+24b=60
b=1/2
1/x=3/1
x=1/3
1/y=1/2
y=2
hence answer is x=1/3 , y=2
3 x- 4 /Y = 7
1/x=a
1/y=b
4a+6y=15
3a-4a=7
4a+6y=15 ×4
3a-4a=7×6
16a+24b =60
18a-24b=42
-------------------
34a=102
a=3
put a=3 in b
16×3+24b=60
b=1/2
1/x=3/1
x=1/3
1/y=1/2
y=2
hence answer is x=1/3 , y=2
shyy:
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