Question

A number is doubled and then increased by nine. The result is ninety- Three. What is the original number?

Answer 1

42

Explanation:

First you subtract 93 by 9. You get 84. Then you divide it by 2. Which is your answer, 42.

This can be represented as:

93=2x+9

First subtract 9 from both sides

84=2x

Then divide by 2 on both sides

42=x