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Answer 1 · 2018-01-29T11:40:48

No solutions for #x,y#.

No need to use matrices here.

#2x-y=10# #(1)#

#2y-x-15=0# #(2)#

From, #(2)#, we can rewrite this into #2y-x=15#.

Now here, from #(1)# and #(2)# we conclude that #10=15#. But we clearly know that #10!=15#.

So, we can say that there are no solutions for #x,y#.