Answer :
Answer:
x + y =4 (eq no.1)
2x – y=5(eq no.2)
x + y =4
=> x = 4 –y
now put the value of x in eq no.2
2×(4–y)–y =5
=> 8–2y =5
=> –2y–y =5–8
=> –3y = –3
=> cancel (–) from both sides
=> 3y = 3
=> y = 3/3
=> y = 1
Now put VALUE of y in eq no.1
=> x + 1 =4
=> x = 4–1
=> x =3
Now Put both Values of x and y and you found your answer correct
3 + 1 =4
4=4