Answer:
40
Explanation:
15 + 3x = 6x - 10
15 + 10 = 6x - 3x
25 = 3x
25/3 = x
To check
15 + 3(25/3) = 6(25/3) - 10
15 + 25 = 50 - 10
40 = 40
The number: x
15+3x = 6x-10
3x = 25
4.4m questions
5.7m answers