5(x - 12) =
5x - 60
8a + 15a + a + 9 =
24a + 9
The property used to multiply a factor across the terms inside parentheses. Shown below:
6(n+5)
x - 3 = 7
x = 10
x=0 is a solution to the following equation:
4x-13+x=-13
What is true?
-7(m + 11) =
-7m - 77
21b - 11b - 10 =
10b - 10
Operations that are opposites of one another. We use them to help solve for a variable in an equation.
What are inverse operations?
-6d = 30
d = -5
a=12 is a solution to the following equation:
33=3(x-1)
What is true?
12(-t - 4) =
-12t - 48
-7d - 3 + 4d - 2 =
-3d - 5
What is a coefficient?
1/2r=-7
1/2r=-7
2*1/2r=-7*2
r=-14
c=-10 is a solution to the following equation:
-6c=20-2c
What is false?
-8(2x - 5) + 2x =
-14x + 40
-15k + 2k - 6j - 3k + 3j =
-16k - 3j
A number whose value does not change. It has no variable associated with it.
What is a constant?
-2/3v=24
-2/3v=24
-3/2*-2/3v=24*-3/2
v=-36
The error in the following calculation:
-1+e+12*7
-1+e+84
e-83
-1+e+84 should become e+83 , not e-83
2(3x - 4) + 2x - 7 =
8x - 15
Write an expression for the perimeter of the triangle shown:

3y+2+3y+3y+5
9y+7
A value for a variable that makes the equation true.
2r-19-r+24=-3
2r-19-r+24=-3
r+5=-3
r+5-5=-3-5
r=-8
The rule that allows you to perform each step in the following solution.
Original problem:
8(1-g)+20*3
Step 1:
8(1-g)+60
Step 2:
8-g+60
Step 3:
-g+68
1. PEMDAS
2. Distributive Property
3. Combine like terms