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REY [17]
4 years ago
13

2x+5y=60 2x-5y=-20 Please show work!

Mathematics
1 answer:
sergejj [24]4 years ago
8 0
 (2x+5y=60)
- (2x-5y=-20)
-------------------
10y=80
y=8 


2x+5(8)=60
2x+40=60 
2x=20
x=10


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