A number is as much greater than 36 as is less than 86. Find the number.

A number exceeds its four-sevenths by 18. Find the number.

If 10 be added to four times a certain number, the result is 5 less than five times the number. Find the number.

One fourth of a number is increased by 7 and the result is multiplied by 3. Thus, we obtain 36. Find the number.