Math, asked by akshsuthar29, 1 year ago

solve by cross multiplication method


x/5+y/15=1/3

x/3+y/5=1/5

Answers

Answered by somyasuyasha
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





akshsuthar29: i have to solve this by cross multiplication method
somyasuyasha: Yaa!!check out the 2nd step hope u understand
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