Question

(vi) 6x + 3y=6xy
2x + 4y = 5xy
​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

6x+3y=6xy divide both side by xy

2x+4y=5xy divide both side by xy

then 6/y+3/x=6

2/y+4/x=5

let 1/x=p and 1/y=q

then 6q+3p=6 (multiply by 4)___eq1

2q+4p=5 (multiply by 3)___eq2

then

24q+12p=24 __eq3

6q+12p=15 __eq4

3-4

18q=9

q=1/2

put q=1/2 in eq1

then

6q+3p=6

6*1/2+3p=6

3+3p=6

3p=3

p=1

then

1/x=p

1/x=1

x=1

1/y=q

1/y=1/2

y=2