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MrRissso [65]
3 years ago
9

Show work to this problem

Mathematics
1 answer:
hoa [83]3 years ago
7 0
X+y=70
x-y=30
x=30+y
30+y+y=70
2y=40
y=20
x+20=70
x=50
xy=(50)(20)=1000
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