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1) 3x – 4y = 4.5
2x + 2y = 10
x = ^{ }/_{ }, y =^{ }/_{ }
2) 5n – 3q = 1
-2n – 3q = -8
n = ^{ }/_{ }, q = ^{ }/_{ }
3) x + 2(y – 6) = 10
3x + 4y = 30
x = , y =
4) 5x – 19 = 2y
3y + 18 = 4x
x = , y =
5) 4a = 1 – 3b
4b = -1 – 6a
a =^{ }/_{ }, b =
6) 2a + 5b = 2
3a + 2b = 25
a = , b =
7) 4x – 3y = 7
12x + 12y = -7
x = ^{ }/_{ } , y = ^{ }/_{ }
8) 7r + 3s = -3
6r + 9s = 0
r = ^{ }/_{ }, s = ^{ }/_{ }
9) 4x + 6y = 21
7x – 3y =3
x = ^{ }/_{ }, y = ^{ }/_{ }
10) 7(a + b) = b – a
4(3a + 2b) = b – 8
a = , b =