x = number
If three is subtracted from five times a number, the difference is four times the number means:
5 x - 3 = 4 x
Subtract 4x to both sides
x - 3 = 0
Add 3 to both sides.
x = 3
Check result.
5 x - 3 = 4 x
5 ∙ 3 - 3 = 4 ∙ 3
15 - 3 = 12
12 = 12
If three is subtracted from five times a number, the difference is four times the number. What is the number?
1 answer