solve by using the method of cross multiplication
5x – 4y + 2 = 0, 2x + 3y = 13
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5x-4y=-2............(1)*2
2x+3y=13 ............(2)*5
10x-8y=-4
10x+15y=65
- - -
.....................
-23y=-69
y=69/23
y=3
putting (1)
5x-4y=-2
5x-4(3)=-2
5x-12=-2
5x=-2+12
x=10/5
x=2
diya654321:
hmm
solve kr ka y=3 aaya hai
or x=2
please jaldi batao
bta to diya , mara bhi cross multiplication kr ka y=3 or x=2 aaya hai
mera bhi wahi aaya lekin book me nahi hai ans sirf x=2
then its ok
ans ryt hai
y=-3/2
book me
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