When 25 is subtracted from 7 times a certain number, the result is 101. What's the number?

Start by representing the number. Let the number be x.

Then "7 times a certain number" comes out to 7x.

When 25 is subtracted from that, the result is 7x - 25 = 101.

Add 25 to both sides: 7x = 126

Finally, solve for x by dividing both sides of the equation by 7.

x = 126/7 (reduce your answer).

The number is 18.

7x18 = 126-25 = 101