Question

2
3. Solve these equations by trial and error method.
(b) 2x = 18
(c) 9- x= 3
(a) x+4= 7
(d)
х
= 12
4​

Answer 1

Answer:

mark me brainlist please

Answer 2

Solution:

Trial and Error Method

B. 2x = 18

Putting x = 0

2(0) = 18
0 = 18
It is not true
Therefore, x = 0 is not a solution.

Putting x = 9

2(9) = 18
18 = 18
It is true.
Therefore, x = 9 is a solution.

C. 9 - x = 3

x = 6

A. x + 4 = 7

x = 3

D. x = 124

Hope this would help.