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2X+3Y=7
Y=19
2. 3X + 6Y = 9
3Y-Y=23
7Y=14
Y=2
3. 2X - 3Y = 12
-9X+3Y=-33
-7X=-21
X=3
4. 3X+4Y=18
10X-4Y=8
13X=26
X=2
5. -4X+6Y=28
15X+6Y=9
19X=19
X=1