Collecting Like terms

400

1

In algebra, what are the letters called that represent an unknown quantity?

Pronumeral/variable

2

What do you call something in algebra that contains a mix of numbers and letters that are separated by math operators like +, - or x. 

E.g.  2x + 5zy - 7

Expression

3

What are 2 other words that are used to describe "adding" or "multiplying"?

Sum and Product

4

What is the number in front of a letter called? 

Coefficient

5

What is it called when you replace a letter with a number to do an algebraic calculation?

Substitution

200

1

8a + 15a + a + 9

24a + 9

2

5x + 35 + 4x + 7

9x + 42

3

32 + 12t + 16t + 8

28t + 40 

4

75f + f + f + f²

77f + f²

5

m² + 9m² + m + 10m  

10m² + 11m

300

1

21b - 6b

15b

2

12c - 6c - 30

6c - 30

3

5z - 55 - 26 - z

4z - 81

4

-7d - 40 + 8d 

d - 40

5

-15j - 18k - 20j - 18k

-35j - 36k

500

1

-7w - 5 + 17w + 15

10w + 10

2

19a - 6b - 17a - 3b + 9b - 2a

0

3

-2f - 1f + 6 + 5f

2f + 6

4

5r + 3q - 8q + r

6r - 5q

5

53t + 20r + 17 - 10t

20r + 43t + 17

100

1

7x + 7

Not Like 

2

3x - 4x + x

Like

3

4x + 7xy + x²

Not Like

4

5x² + 2x

Not Like

5

10xy² - 5xy² + xy²

Like