Question

Q. 15. Show that x = 1, y = 2 is the solution of the system of linear equations:
2x + y = 4,3x +y =5​

Answer 1

Given that:

x = 1, y = 2.

2x + y = 4

2×1 + 2 = 4

2 + 2 = 4

4 = 4

.

.

.

3x + y = 5

3×1 + 2 = 5

3 + 2 = 5

5 = 5

here is your ans hope it's help

Answer 2

Given that :

x = 1, y = 2

2x + y = 4

2×1 + 2 = 4

2 + 2 = 4

4 = 4

.

.

.

3x + y = 5

3×1 + 2 = 5

3 + 2 = 5

5 = 5