Question

x-y=-2 and 2x -y=1 using substitution method​

Answer 1

Answer:

x - y = 2

x = y - 2 ...(1)

2x - y = 2

substituting the value of x from (1)

2(y -2) - y = 2

2y - 4 - y = 2

y - 4 = 2

y = 6

therefore taking value of y in equation (1)

x = 6 - 2

x = 4

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