Answer:
x=3 and y=4
Step-by-step explanation:
all real numbers
x = 0
y = 1
-2x + y = 1
-2x + (2x + 1) = 1
-2x + 2x + 1 = 1
x + 1 = 1
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y = 2x + 1
y = 2(0) + 1
y = 0 + 1
