Question

x-y=-2 x-y=1 by substitution please solve​

Answer 1

x-y

x=2. y=1

2-1

1 is your answer

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Answer 2

Answer:

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before doing it first check it

a is coefficient of x, b is coefficient of y,

a/a = b/b not equal to c/c

1/1=1/1not equal to -2/1

so , it has no real solutions

Step-by-step explanation:

verify

x - y = -2. (1)

x - y = 1. (2)

x - y =1

x=y+1

by putting in equation 1

y+1-y=-2

1=-2

so it has no solution

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