Answer:
x = 4
y = 11
Explanation:
x + y = 15 Eq. 1
5x - y = 9 Eq. 2
_________
6x + 0 = 24
6x = 24
x = 24/6
From Eq. 1:
x + y = 15
4 + y = 15
y = 15 - 4
Check:
From Eq. 2
5x - y = 9
5*4 - 11 = 9
20 - 11 = 9
Use 1 equation plus the 2 equation
5x + x + y - y = 24
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