Question

Solve for x and y:
2\x +3\y =13 and 5\x -4\y =-2​

Answer 1

Answer:

1/x=a and1/y=b

2a+3b=13

5a-4b=-2

Step-by-step explanation:

4×2a+3b=13

3×5a-4b=-2

8a+12b=52

15a-12b=-6

23a=46

a=46/23

a=2

2a+3b=13

2×2+3b=13

4+3b=13

3b=13-4

3b=9

b=3

1/x=a 1/y=b

1/x=2 1/y=3

2x=1 3y=1

x=1/2 y=1/3