Question

20.
Solve the pair of linear equations in two variable by cross multiplication methods.
6x + 3y - 6xy = 0 and 2x+4y-5xy=0.​

Answer 1

Answer:

6x+3y= 6xy -----(1)

2x+4y=5xy--------(2)*3

6x+3y=6xy

6x+12y=15xy

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0- 9y= -9xy

X= -9y/-9y= 1

Put x= 1 in eqn (1)

6y-3y=6

3y= 6

Y=6/3= 2

X=1, y=2