Solve these equations for x:

13). 8x - 4 = 60     x = ______



14).     x = ______




15). x - 5 = 15     x = ______



16). 5 - x = 2     x = ______



17). 22 - 3x = 7     x = ______



18). 18 - 2x = 6     x = ______



Write the equation for these problems first, then solve it:

19). Fifteen less than a certain number is 60. What is the number?

Equation: __________________Answer:___________


20). I am thinking of a number. Four times the number plus 5 is equal to 45. What is the number?

Equation:__________________Answer:___________


21). Four more than twice the number of cousins I have is 16. How many cousins do I have?

Equation: __________________Answer:___________