Answer:
y=-4 x=1
Explanation:
y = 1/2x + 3
x - y = 5
x-1/2x + 3=5
-3 -3
1/2x=2
1/2 1/2
x=1
1-y=5
-1 -1
-y=4
/-1 /-1
y=-4
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