Khanh Tran Ngoc

1. Hamjamiyat
2. Study Group
3. Can someone help me with this question?

The correct soultion is y=1.  3x+2y=17 AND 5x+4y=21<=> 6x+4y=34 AND 5x-4y=21Add both sides of the left equation to both sides of the right equation.We get 11x=55, therefore x=5Substitute x=5 to 3x+...

1. Hamjamiyat
2. General Khan Academy Questions
3. Homeschooling placement test

If you do not live in the U.S (which I guess for certain), try going back up to 3 grades. You might not have come across and mastered all necessary knowledge.