AnclouisanJace AnclouisanJace

25-12-2016
Mathematics

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What is the substitution to 3x y=-16 5x y=-20?

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desirjeanpierre desirjeanpierre

26-12-2016

the first one ,to substitute 3xy from -16 ...so divided both side by 3 .so, (xy =-5.33). the second one,5xy =-20. so,divided both sides by 5 so xy = -4....

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