2. Solve the following simultaneous equations.
(2) x + 7y
(1) 3a + 5b = 26; a + 5b = 22
(3) 2x - 3y = 9; 2x + y = 13
(4) 5m - 3n
(5) 5x + 2y = -3; x + 5y = 4
(6)
x + y =
(7) 99x + 101y = 499; 101x + 99y = 501
48) 49x - 57y = 172; 57x -
49 = 252
Let's recall
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