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Nikitich [7]
3 years ago
12

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

Mathematics
1 answer:
erica [24]3 years ago
5 0
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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