The sum of a number and five more than that number is 47.  What is the number?

Two more than twice the sum of x and five is equal to twelve less than three times the sum of x and two.

If 12 more than a number is added to the number, and three times the number is subtracted, the result is the original number. What is the original number?

Next year, Martha will be three times as old as she was 17 years ago. How old is Martha now?

The height of a building measured in feet is 196 more than its height measured in yards. What is the height of the building in feet?

Half of a third of a number is decreased by six, and a third of a fourth of the result is increased by ten. One fifth of the result is 17. What is the original number?

A number, plus 5 more than that number, plus twice the sum of 5 and that number, is 43. What is the number?

I'm thinking of three numbers. The second number is fourteen more than the first number, and the third number is twice the second number. If the first number is subtracted from the third, the result is 44. What is the third number?

I have a sheet of paper with three integers written on it. If I add them together, I have a sum of 38.

Two of the numbers differ by one. One of the three numbers is 11.

What is the largest possible integer that could be written on the paper?

I have a problem with dry erase markers disappearing from my classroom. A third of my markers were stolen by a student, and then one of my co-workers "borrowed" four markers. After that I realized that half of the remaining markers didn't work, so I threw them away.

In the end, I just had two markers left.

How many did I start with?

Nathan started at the bottom of the stairs and climbed n steps. After that he went down n - 4 steps, and was then 15 steps from the top of the stairs. How many steps are there?