55.6k views
5 votes
If you subtract twelve from twice a number, the result is eight. what is the number?

User Jtrumbull
by
7.5k points

2 Answers

3 votes
Let's represent the number with Y
Twice the number will be 2Y
12 is subtracted from it. That will be;
2Y-12
And it is equal to 8
2Y-12=8
-12 will go over the equality sign to become +12
2Y=8+12
2Y=20
Divide both sides by 2
Y=20/2
Y=10
The number is 10
Have a nice day
User JMarsch
by
6.9k points
2 votes
2x - 12 = 8
2x = 8 + 12
2x = 20
x = 20/2
x = 10 <== ur number
User Sean Goudarzi
by
7.0k points