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Mathematics
1 August, 04:17
What is the substitution to 3x y=-16 5x y=-20?
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Salvatore
1 August, 04:36
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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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