Vocabulary
a symbol (usually a letter) standing in for an unknown numerical value
variable
4a + 7c – 2 – 5a + 2c
–a + 9c – 2
(8x + 7) + (5x + 7)
13x + 14
Find the additive inverse:
10x – 1
–10x + 1
(9x – 4) – (6x + 7)
3x – 11
each part of an algebraic expression
term
8 – 7x + 2y – 3x + 2y + 3
–10x + 4y + 11
(−2x + 9) + (3x + 4)
x + 13
Find the additive inverse:
–9x + 7
9x – 7
(–x – 7) – (–8x – 9)
7x + 2
the numerical factor of a term that contains a variable
coefficient
5(2x – 3)
10x – 15
(6x − 1) + (−9x + 6)
−3x + 5
Find the additive inverse:
–3x – 8
3x + 8
(–4x – 2) – (5x + 10)
–9x – 12
a term without a variable
constant
(–4y – 5z)3
–12y – 15z
(−6x − 4/9) + (4x + 2/3)
-2x + 2/9
Find the additive inverse:
–4x + 3
4x – 3
(2/3x - 5/8) - (4/15x + 1/4)
2/5x - 7/8
contain the same variable to the same power
like terms
1/5x - 4/7 + 3/10x - 1/14
1/2x - 9/14
(9x - 2/3) + (-3x + 3/4)
6x + 1/12
Find the additive inverse:
2x – 7
–2x + 7
(5/6x - 3/11) - (3/8x - 1/2)
11/24x + 5/22