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3x - 5y = 111

4x + 3y = -26

Eqn 1 * 4 : 12x - 20y = 444

Eqn 2 * 3 : 12x + 9y = -78

Subtrcating the first of these from the second,

29y = -522 and dividing both sides by 29: y = -18

Substituting this value in eqn 1: 3x + 90 = 111 so that 3x = 21 and x = 7

Soln: (x,y) = (7,-18)

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Q: 3x-5y equals 111 4x plus 3y equals -26?
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