Question

solve by trail and error method: 3x+5=14​ (it is maths)

Answer 1

Answer:

3

Explanation:

3x=14-5

x=9/3

x=3

ok..............

Answer 2

Answer:

x = 3

Explanation:

3x+5-14 = 0

3x-9

Let x = 0

3(0)-9 = 0

0-9=0

-9 = 0

Therefore, x doesn't equal 0

Let x = 1

3(1)-9 = 0

3-9 = 0

-6 = 0

Therefore, x doesn't equal 1

Let x = 2

3(2)-9 = 0

6-9 = 0

-3 = 0

Therefore, x doesn't equal 2

Let x = 3

3(3)-9 = 0

9-9 = 0

0 = 0

Therefore, x = 3