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1)2х+у=1

5х+2у=0 

 

2) х+5у=7

3х+2у=-5 

 

3) 2х-3у=1

3х+у=7 

 

4) х+у=6 

5х-2у=9

 

5) х+у=7

5х-7у=11

 

6)4х-3у=-1

х-5у=4 

 

7)2х-5у=-7

х-3у=-5

 

8)3х-5у=16

2х+у=2 

 

 9) 2х+5у=-7 

3х-у=15 

10) 

2х-3у=5

х-6у=-2

 

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