265,318 views
36 votes
36 votes
Twice a certain number minus 4 is equal to five. pls help me with it​

User Narayan Singh
by
2.9k points

2 Answers

20 votes
20 votes
We can make an equation for this!

2x - 4 = 5
2x - 4 + 4 = 5 + 4
2x = 9
x = 9/2
User Josh Thomas
by
2.7k points
22 votes
22 votes

Explanation:

let the number be x

x+x -4=5

2x- 4=5

2x =5+4

2x =9

divide both sides by 2

x=9/2=4.5

User Electric Coffee
by
3.3k points