Solve these equations for x:

13). 15 - 2x = 5



14). 100 - 2x = 50



Write the equation for these problems first, then solve the problem.

15). Fourteen more than a certain number is 57. What is the number?



Equation: _____________________Answer:___________


16). I am thinking of a number. Three times the number minus 6 is equal to 45. What is the number?



Equation:_______________________Answer:___________