Question

Solve the following equation by using trial and error method: 2k+3= 9​

Answer 1

Answer:

Correct option is

A

5

x

15

=3

Put x=3

3

15

=3

5=3 wrong

Put x=5

5

15

=3

3=3

So 5 is the final Answer.

Step-by-step explanation:

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Answer 2

Answer:

put k = 1

2*1+3 = 2+3 = 5 which is not equal to 9

put k= 2

2*2+3= 4+3= 7which is not equal to 9

put k= 3

2*3+3 = 6+3 = 9 which is equal to 9

so k=3 is the solution

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