Question

Que. 19. In the equation x = 2y + 9, if x = 1, than y =​

Answer 1

Answer:

$y = ( - 4)$

Step-by-step explanation:

Given that,

$x = 1$

Question :

$x = 2y + 9$

You have to find the value of y. So, make the y as the Subject

$x = 2y + 9 \\ x - 9 = 2y \\ \frac{x - 9}{2} = \frac{2y}{2} \\ \frac{x - 9}{2} = y$

Now replace 1 instead of x

$y = \frac{x - 9}{2} \\ y = \frac{1 - 9}{2} \\ y = \frac{ - 8}{2} \\ y = - 4$

Hope this helps you.

Let me know if you have any other questions :-)

Answer 2

Answer: y = -4

Step-by-step explanation:

If x = 1

1 = 2y + 9

1 - 9 = 2y

-8 = 2y

y = -8/2

y = -4

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