X divided by 4 subtracted by -10 equals 7 what is x

(c/4 -10=7)

One integer is 8 times another. if the product is 72, then find the integers

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.