Question

2. Identify the correct solution of the following equations:
a. x + 9=11 → (5,2,8)
b. b-6=5 (12, 13, 11)
I trial and error method​

Answer 1

Answer:

a=2

b=11

Step-by-step explanation:

i hope answer given help

Answer 2

Answer:

a. 2

b. 11

Step-by-step explanation:

a.

(i) let's assume x = 5, then

putting value of x in the equation, we get

5 + 9 = 11

=> 14 ≠ 11, since LHS ≠ RHS

Therefore, x ≠ 5

(ii) Let's assume x = 2, then

putting value of x in the equation, we get

2 + 9 = 11

=> 11 = 11, since LHS = RHS

Therefore, x = 2.

b.

(i) let's assume b = 12 , then putting value of b in the equation, we get

12 - 6 = 5

=> 6 ≠ 5, since LHS ≠ RHS

Therefore, b ≠ 12.

(ii) let's assume b = 13 , then putting value of b in the equation, we get

13 - 6 = 5

=> 7 ≠ 5, since LHS ≠ RHS

Therefore, b ≠ 13.

(iii) let's assume b = 11 , then putting value of b in the equation, we get

11 - 6 = 5

=> 5 = 5, since LHS = RHS

Therefore, b = 11.

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