Question

2) To draw graph of 2x – 7y = 23, find y when x = 1.​

Answer 1

Step-by-step explanation:

Given

x = 1

y = ?

$2x - 7y = 23$

Value of x = 1 put in equation we get.

$2 \times 1 - 7y = 23$

$2 - 7y = 23$

$- 7y = 23 - 2$

$- 7y = 21$

$y = - \frac{21}{7}$

$y = - 3$

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Answer 2

Answer:

2x - 7y = 23

value of x = 1

2(1) - 7y = 23

-7y = 23 - 2

-7y = 21

-y = 21 ÷ 7

-y = 3

y = -3