Math, asked by kaarthika151516, 1 year ago

I will mark you as the brainly if you solve the problem

Attachments:

sivaprasath: 1st Q has no solution, & 3rd Q has infinitely many solutions,.

Answers

Answered by nikitanandal
1

not sure about the answer

Attachments:

kaarthika151516: We should use a different formula I guess!!!
vishakh7: but this is elimination method, isn't it?
Answered by vishakh7
2

(i) x-3y-3=0-->1

3x-9y-2=0-->2

multiply -->1by 3 we get,

3x-9y-9=0-->a

then -->a -->2 we get

no answer

(ii)2x+y=5-->1

3x+2y=8-->2

3 cross eq 1 we get,

6x+3y=15-->a

then 2 cross eq2 we get,

6x+4y=16-->b

then eq b - eq a we get

y=1. substitute this in eq 1 we get

2x+1=5

2x=4

x=2

so x=2, y=1

do the rest of em with same method :)


kaarthika151516: Thank you for showing the method
vishakh7: u welcome
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