3 years ago

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

Mathematics

1 answer:

sergejj [24]3 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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