Question

Solve for x and y
Qf.
class 10 ​

Answer 1

Answer:

let a/x be t and b/x be u

Step-by-step explanation:

2a/x +3b/y+1 =0 eq.... 1

3a/x-b/y-4 =0 eq....2

2a/x+3b/y=-1 eq.....3

3a/x-b/y=4 eq....4

so,when we let x/a be t and b/y be u

therefore, we write

2t + 3u = -1eq......5

3t - u = 4 eq.....6

then make eq...

3t=4+u

t=4+u/3 value of t put in eq... 5

2(4+u/3) +3u=-1

8+2u/3+3u=-1

8+2u+9u/3=-1

8+2u+9u =-3

8+11u =-3

11u =-3-8

11u =-11

u=-11/11

u =-1

put u value in any eq