A letter that represents an unknown value (ex: x or y)

What is a Coefficient?

A number that is attached in front of a variable (ex: 2x or 5y)

What is an expression (in math)?

A mathematical sentence that does not contain an = sign

The parts of an expression, separated by a + or - sign.

A number all by itself (ex: 7 or 8)

Like terms are the same variable raised to the same power.

What does it mean to SIMPLIFY an expression?

To perform operations and combine like terms

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Questions 26

Answers

1
Combine like terms: 8 + 12s - 7 - 9s + 4
3s + 5
21s + 4
3s + 19
21s + 5
2
Combine the like terms: 4c + 5c + 6c
14c
15
120c
15c
3
Combine the like terms: 4x + 3x + 10
17X + 10
17x
7x - 10
7x + 10
4
Combine Like Terms: 40h - 36h
4h
4
76h
76
5
Combine like terms: 2m + 4 + 6m - 12
8m + 8
0
8m - 8
8m + 16
6
Combine like terms: 7 + 5x + 2x + 4
7x + 3
7x + 11
18x
12x + 6
7
What is a Variable?
A letter that represents an unknown value (ex: x or y)
A number next to a variable (ex: 4x or 5y)
A number all by itself (ex: 7 or 8)
All of the things that make up a math problem
8
Combine like terms: 6p + 3p
9
18p
9p
3p
9
What is a Coefficient?
An expression
A number by itself (ex: 3 or 4)
A symbol or letter (ex: x or y)
A number that is attached in front of a variable (ex: 2x or 5y)
10
Combine like terms: 4c + c - 5c
9c
5c
10c
0
11
Combine like terms: 5c + 3 - 2c + 5
3c - 8
3c + 8
7c + 8
11c
12
Simplify the expression by combining like terms: 3x - 7 + 2x - 7
-9x
5x
5x + 14
5x - 14
13
Combine like terms: 10a - a + 2a
9a
11a + 2a
11a
13a
14
Combine like terms: 12x + 4x + 5k - 4k
8x + k
16k + x
16x + k
17k
15
What is an expression (in math)?
A symbol using a letter to represent a number
A mathematical sentence that contains an = sign
A bunch of numbers without operation signs
A mathematical sentence that does not contain an = sign
16
Combine like terms: 10k + 7 - 3k - 8
17k - 11
7k - 1
6k
7k + 15
17
Combine like terms: 9d + 8 + 2d - 4
7d + 4
11d - 4
15d
11d + 4
18
What is a TERM?
The operations in an expression
A word that is inserted in an expression
A letter that stands for a number
The parts of an expression, separated by a + or - sign.
19
What is a Constant?
A number all by itself (ex: 7 or 8)
All the things that make up an expression
A letter that represents an unknown value (ex: x or y)
A number next to a variable (ex: 4x or 5y)
20
Combine the like terms: 5x² + 4b - 8b + x²
6x2 - 4b
4x2 - 4b
9x2 - 7b
6x2 + 4b
21
What are like terms?
Like terms are the same variable raised to the same power.
Like terms can be any variable. EX: 4y, 9d
Like terms are the same variable raised to any power.
22
Combine Like Terms: 18z - 10y + 2z + 6y
20z + 16y
20z - 4y
20z - 16y
16z + 16y
23
Combine like terms: 9e - 2e + 3 + 5e - 10
7e - 7
12e + 13
16e + 7
12e - 7
24
Simplify by Combining Like Terms
16dy
10y + 6d
9y + 7d
9d + 7y
25
What does it mean to SIMPLIFY an expression?
To substitute values into the expression
To solve for the variable
To perform operations and combine like terms
To graph the expression
26
Combine like terms: -3b + 2 + 6b² - 1 + 4b
7b2 + 1
6b2 + 7b + 3
6b2 + b + 1
6b2 - b + 3

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