Find a number such that when 15 is subtracted from 7 times the number, the result is 10 more than twice the number.
A
5
B
7
C
9
D
15
Correct Answer: 5
Let, the number is x Now, we get 7x - 15 = 2x + 10 7x - 2x = 10 + 15 5x = 25 x = 5