x+2y=20. 5+2y=20
2x-y=5. y=20-5
---------------. 2
2x+2y=20. y=15
4x-2y=10. 2
---------------. y=7.5
6x. =30
x=30
6
x=5
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Verified answer
x+2y=20. 5+2y=20
2x-y=5. y=20-5
---------------. 2
2x+2y=20. y=15
4x-2y=10. 2
---------------. y=7.5
6x. =30
x=30
6
x=5