Question #22da8

1 Answer
Jam
Oct 28, 2017

x = 2
y = 1

Explanation:

1) 2x + y = 5
2) 3x + y = 7

Subtract equation 1 from equation 2:
3x - 2x = x
y - y = 0
7 - 5 = 2

Therefore, x = 2.

Substitute x = 2 into either equation:
2x + y = 5
(2 * 2) + y = 5
4 + y = 5
y = 1

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