Terminology

Terminology

Expression

Variable Mathematics term of letters

Coefficient A number just before the letter

Constant A number that is alone

2a + 5a = 7a

• When the letters are the same, add the numbers and leave the same letters

 

4c + 5c = 9c

7p - 4p = 3p

ab + 2ab = 3ab

2a + 4c + 5c + 5a = 7a + 9c  -  Letters must be in alphabetical order

3f + 2g + 4f + 7g = 7f + 9g

2a + 3a2 + 4a = 3a2 + 6a