2.22 Question 14 - Math

Mathematics
Tutor: None Selected Time limit: 1 Day

Feb 22nd, 2015

Substitute y=2x+1 into the second equation to get 5(2x+1)-6x=13. 

Simplifying, you get 10x+5-6x=13. So 4x=8. Therefore x=2 y=5. 

Thus the answer is A. The solution is (2,5). 

Feb 22nd, 2015

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