82.6k views
1 vote
Alex divides by 2, then adds 5 to get an answer of 4. What was the original number?

User Meanman
by
6.4k points

1 Answer

9 votes

Answer:

-2

Explanation:

(Let x = the original number)

x/2 + 5 = 4

subtract 5 from both sides

x/2 = -1

multiply both sides by 2 to isolate x

x = -2

The original number was -2.

User Amit Chahar
by
6.0k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.