Balancing Equations and Simplifying Expressions
Balance the equation by finding the missing value:
7- 13=_+2
-8
What operation do the words "loss", "take away", and "remove" tell you to do?
Subtraction
Solve for x:
x-12=9
21
Expand using the distributive property:
5(x-3)
5x-15
What is the value of the missing exponent?
6?=1296
4
If a+5=7, a-b=2 and a*b+c=-4, what are the values of a, b, and c?
a= 2
b=0
c=-4
What is the correctly written equation for the following word problem:
A bookstore charges a $5 membership fee plus $2 per book. If Sarah spent $19 at the bookstore, how many books did she buy?
2b+5=19
Solve for x:
3x=-27
x=-9
Simplify using the distributive property:
5(7-3x)+4
39-15x
Combine using order of operations:
52*(2-8)/3
(* is multiplication, / is division)
-50
Simplify the expression
x+x+x+x+x-4+13-23
5x+1
Write the expression for the word problem:
Andy wants to make cookies for everyone attending an event. In addition to the people invited to the event, each person is bringing 2 guests. Andy wants each person to have 3 cookies. How many cookies will he have to make?
3(x+2)
5+2x=19
7
Simplify using distributive property:
-2(3x-4)-7
-6x+1
Add parenthesis to make the equation true:
8-4*3+2=-12
8-4*(3+2)=-12