Question

If (1,-1) is a point on the line 2x - (2a+5) y=5 then find the value of a

Answer 1

solution

$= > 2x - (2a + 5)y = 5 \\ = > 2(1) - (2a + 5)( - 1) = 5 \\ = > 2 + 2a + 5 = 5 \\ = > 2a = - 2 \\ = > a = - 1$

Answer 2

Answer:

$\huge\begin{lgathered} 2x - (2a + 5)y = 5 \\ 2(1) - (2a + 5)( - 1) = 5 \\ 2 + 2a + 5 = 5 \\ 2a = - 2 \\ a = - 1\end{lgathered}$