Latest book Aptitude Question SOLUTION: How do I work out these problems 1x+1y=2 , -5x+1y=20 and -5/-7x+ 1y=-10/-7 to get these answers (-3,5), (-5,-5), and (2,0)?

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(#M40141620) BOOK Numerical Ability question Keep an EYE

How do I work out these problems 1x+1y=2 , -5x+1y=20 and -5/-7x+ 1y=-10/-7
to get these answers (-3,5), (-5,-5), and (2,0)?

Asked In book (9 years ago)

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