Algebra Essentials
Chapter 3 Test
For problems 1-2, solve the equation.
1)
x-12=13
2)
14=x-(-7)
3) You owe $34 to your sister. You gave her your allowance for the week, and now you only owe her $12.
How much was your allowance?
For problems 4-9, solve the equation.
4)
35a= -70
5) 5x+7-2x=22
7)
4(x+4)=8
For problems 11-12, solve the equation.
11)
1.5x+7.4=-1.8x-6.9
14) Solve the following equation for y:
7x+y=13
18) Mr. Lynch decides to go out for a nice seafood dinner. After dinner, his waiter brings him the bill and the
total is $32.00 before tip.
a) Find the amount Mr. Lynch should leave as a tip if he decides to tip 20%.
b) What is the total bill including tip?
EXTRA CREDIT:
Solve the following equation. Show all work for credit.