Answer:
2x1-5y=17
2-5y=17
-5y=17-2
-5y=15
y=-3
Explanation:
x =11
2x-5y=17
Let y=1
2x-5(1) = 17
2x-5=17
Add 5 to each side
2x-5+5 = 17+5
2x = 22
Divide each side by 2
2x/2 = 22/2
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