Twice a number less 3 equals 19. What is the number?

Answer 1

Let's represent the unknown number with the variable x.

Then " twice a number" would be written as : 2x

Next, "twice a number less 3" would be written as: 2x - 3

The text, "equal 19" can be written as: = 19

Combining these expressions gives us: 2x - 3 = 19

You can solve this equation for the unknown number using inverse operations:

2x - 3 = 19

2x - 3 + 3 = 19 + 3

2x = 22

2x/2 = 22/2

x =11

The unknown number would be 11 .