Question

y-4=9 solve the equation using trial and error method​

Answer 1

Answer:

$y - 4 = 9$

$y = 9 + 4$

$y = 13$

Answer 2

Answer:

Since 4 is subtracted from 'y', so we will choose a number bigger than 4 as y.

Let y=5

5-4=9

1 is not equal to 9.

Let y=6

6-4=9

2 is not equal to 9.

Let y=7

7-4=9

3 is not equal to 9.

Let y=8

8-4=9

4 is not equal to 9.

Let y=9

9-4=9

5 is not equal to 9.

Let y=10

10-4=9

6 is not equal to 9.

Let y=11

11-4=9

7 is not equal to 9.

Let y=12

12-4=9

8 is not equal to 9.

Let y=13

13-4=9

9=9

So, y=13.

hope it helps...