Solve: 2x + 3y = 12, x - y = 1
Ax = 3, y = 2CORRECT
Bx = 2, y = 3
Cx = 4, y = 3
Dx = 1, y = 0
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Why the answer is A, and why the others tempt you.
From eq2: x = y+1. Substitute: 2(y+1) + 3y = 12; 5y + 2 = 12; y = 2; x = 3.
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