Question

Alex was thinking of a number Alex doubles it then adds 20 to get an answer of 22.7 what was the original number

Answer 1

Answer:

Let the required number be x

2x+20 = 22.7

2x = 2.7

x = 1.35

Thus, the original number was 1.35

Step-by-step explanation:

Let the number be x, and add 20 to get the result of 22.7.

We move 20 to the right side, and we subtract it from 22.7 leaving 2.7.

2.7 divided by 2 is 1.35.