Question

13. x=2, y=-1 is a solution of the linear equation a) x+2y=0 b) x+2y=4 c) 2x+y=0 d) 2x+y=5​

Answer 1

Answer:

Option (A) x + 2y = 0 is correct.

Hence, x + 2y = 0 is the linear equation. Hence, x + 2y = 4 is not the linear equation.

Answer 2

answer

given :

x= 2

y=1

Step-by-step explanation:

a) x+2y= 0

2+2×1=0

2+2=0

4 =x 0

b) x+2y= 4

2+2×1=4 (substituting the values of x and y)

2+2=4

4=4

c) 2x + y =0

2×2+1=0

5 =x 0

d) 2x+y=5

2×2+1=5

5 = 5