Question

Q23.Check whether (2,5) is a solution of the equation 2x - y = - 1​

Answer 1

Answer:

let

X=2andy=5

2×2-5

4-5

-1

yes, (2,5) is the solution

Answer 2

Step-by-step explanation:

$2x - y = - 1 \\ 2 \times 2 - 5 = - 1 \\ 4 - 5 = - 1 \\ - 1 = - 1 \\ = 0$

Hence (2,5) is a solution of the equation.