3. two lines, a and b, are represented by the following equations:

1 answer:

3 0

2x + y = 6 . . . . . (1)
x + y = 4 . . . . . (2)

(1) - (2) => x = 2

From (2): 2 + y = 4 => y = 4 - 2 = 2

Therefore, the solution is (2, 2)

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