38.0k views
4 votes
Three more than a certain number is
18 less than twice the number.
What is the number?

User Kenorb
by
3.4k points

2 Answers

4 votes

i don't have an answer sorry.

User Nitin Arora
by
4.4k points
4 votes

Answer:

Then number is 21

Explanation:

a+3=2a-18

Collect like terms we have

2a-a=3+18

a=21