plzx solve this
from class 11th maths
chapter 1 sets
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We have
X-7y=-5-(i)
3X+y-7=0
3x+y=7-(ii)
From enq(I) ×3-enq(ii)
3x-21y=-15
3x+y=7
- - -
22y=22
y=1
Putting the value of y in enq(I)
X-7×1=-5
X-7=-5
X=-5+7
X=2
Intersections point is(2,1)
X-7y=-5-(i)
3X+y-7=0
3x+y=7-(ii)
From enq(I) ×3-enq(ii)
3x-21y=-15
3x+y=7
- - -
22y=22
y=1
Putting the value of y in enq(I)
X-7×1=-5
X-7=-5
X=-5+7
X=2
Intersections point is(2,1)
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