solve by cross multiplication method
x/5+y/15=1/3
x/3+y/5=1/5
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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
Yaa!!check out the 2nd step hope u understand
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