Whats the purpose of finding X in any given equation?!

How to solve 2x - 12 : 3 = 7

You have $20 and spend $2.50 a day for lunch, write and equation for the amount of money you have

What does "d2" mean in trigonometry?

The difference between three times a number and 10 is 17

Solve for A sinA=0.8829

How do you evaluate the expression - 2.3

Sandy collected 5 bags of fruit. each bag had the same amount of fruit. she was given 4 more apples. How many pieces of fruit were in each bag if she ended up with 39 pieces of fruit?

A cook had 15 eggs to scramble and equally serve 4 people. Which location on a number line correctly indicates the number of eggs each person would receive? A. between 2 and 3 B. exactly 3 C. between 3 and 4 D. between 4 and 5

Is 11.3 meters the same as 113 cm

Area of triangle with apothem of 5