Question

Please help! With math problem:))

Answer 1

Answer B - - 1



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Answer 2

B - -1

Explanation:

x+y=1

x-y=3

x-y +y = 3 +y

x=3 +y

x+y =1

(3+y) +y=1

3 + 2y= 1

2y= -2

y= -1