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1) 2y + x = 7
3y + 2x = 12
y = , x =
2) 5x + 4y = 21
x + 2y = 9
x = , y =
3) y + x = 7
3y + 4x = 23
y = , x =
4) x + 5y = 11
2x – 2y = 10
x = , y =
5) x + 3y = 10
4x – 4y = 8
x = , y =
6) x + 4y = 13
3x – 3y = 9
x = , y =
7) 3x – 2y + 5 = 0
x + y = 5
x = , y =
8) 8y = 3 – x
3x – 2y = 9
x = , y =
9) x + y = 5
2x – 2y = -2
x = , y =
10) 10x – y = -2
-15x + 3y = 9
x = ^{ }/_{ }, y =