Vocabulary
5x + 7 = 17
What is the coefficient in this equation?
5
13 x 0 = 0
a) Inverse Property of Multiplication
b) Zero Property of Multiplication
c) Identity Property of Multiplication
d) Substitution Property
B
Zero Property of Multiplication
Write the equation:
some number increased by 5 is the same as 13
x + 5 = 13
Solve for x.
5 + x = 14
Solve for x.
6.7 + x = 15.9
x = 9.2
7 - 2x = 7
What is the variable in this equation?
x
-6 + 6 = 0
a) Zero Property of Addition
b) Commutative Property
c) Inverse Property of Addition
d) Associative Property
C
Inverse Property of Addition
Write the equation:
Six times some number minus 7 is 5
6x - 7 = 5
Solve for x.
x - 8 = 15
x = 23
Solve for x.
x - 4.7 = 7.3
x = 12
9 + 4x = 21
List all of the terms in this equation.
9
4x
21
If: 8 x a = 12
Then: 8 x a + 3 = 12 + 3
a) Associative Property
b) Inverse Property of Addition
c) Substitution Property
d) Addition Property of Equality
D
Addition Property of Equality
Write the equation:
A group of friends each had 5 cookies. The total number of cookies is 20.
Solve for x.
-7x = 63
x = -9
Solve for x.
-25/x = 5
x = -5
5x - 7y = 1
List all of the variables in this equation.
x
y
If: 3d = 15
Then: 3d x 7 = 15 x 7
a) Commutative Property
b) Multiplication Property of Equality
c) Identity Property of Multiplication
d) Associative Property
B
Multiplication Property of Equality
Write the equaiton.
Max earned $18 mowing lawns one week. Then he made more money mowing lawns the next week. Now he has $35.
18 + x = 35
Solve for x.
x/5 = 9
x = 45
Solve for x.
-8 + x = 9
x = 17
2x + 8y = 24
List all of the coefficients in this equation.
2
8
If: 7 + x = 13
Then: 7 + x - 9 = 13 - 9
a) Subtraction Property of Equality
b) Inverse Property of Multiplication
c) Multiplication Property of Equality
d) Substitution Property
A
Subtraction Property of Equality
Mary found 24 seashells on the beach. She organized her seashells into different groups. There were 4 seashells in each group.
24/x = 4
Solve for x.
19 - x = 7
x = 12
Solve for x.
-7 - x = -15
x = 8