Question

solve by cross multiplication method


x/5+y/15=1/3

x/3+y/5=1/5

Answer 1

Answer:X=3,Y=-4

Step-by-step explanation:

X/5+Y/15=1/3 and X/3+Y/5=1/5

3X+Y/15=1/3 and 5X+3Y/15=1/5

9X+3Y=15 and 25X+15Y=15

3X+Y=5 and 5X+3Y=3

Y=5-3X and 5X+3(5-3X)=3

Y=5-3X and 5X+15-9X=3

Y=5-3X and 4X=12

Y= 5-3X and X=3

If X=3 then Y= 5-3(3)=-4