(ii) x - y = 3, 3x – 2y = 10
by elimination method
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Answered by
21
=x-y=3__(1)
3x-2y=10__(2)
=By elimination method
multiplying(1)from 3 and (2)from 1 we get,
3x-3y=9__(3)
3x-2y=10__(4)
from eq (3)&(4)
3x-3y=9
3x-2y=10
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y=-1
putting y=-1 in (3)
3x-3y=9
3x-3×-1=9
3x+3=9
3x=9-3
3x=6
x=6/3
x=2
therefore x=2 and y=-1
Answered by
5
Answer:
=x-y=3__(1)
3x-2y=10__(2)
=By elimination method
multiplying(1)from 3 and (2)from 1 we get,
3x-3y=9__(3)
3x-2y=10__(4)
from eq (3)&(4)
3x-3y=9
3x-2y=10
▪▪▪▪▪▪▪▪▪▪▪
y=-1
putting y=-1 in (3)
3x-3y=9
3x-3×-1=9
3x+3=9
3x=9-3
3x=6
x=6/3
x=2
therefore x=2 and y=-1
Step-by-step explanation:
Hope it hepls you
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