Question

1. The solution of the equations x – y = 2 and x + y = 4 is:


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Answer 1

Answer:

Given,

x-y=2 .....(1) or x=y+2

x+y=4 .....(2)

Substitution of 1 in 2.

y+2+y=4

⇒2y+2=4

⇒2y=2

⇒y=1.

x-1=2

⇒x=2+1

x=3.

∴ x=3 and y=1