solve the following pair of linear equation by using
cross multiplication method. x+ 2y=2,x-3y =7
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1)x+2y=2
=x+y=2/2
=x+y=1
2)x-3y=7
=x-y=7/3
=x-y=2.3
=x+y=2/2
=x+y=1
2)x-3y=7
=x-y=7/3
=x-y=2.3
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