Vocabulary
8a - 6a
2a
20x+18x
38x
16x + 4x + 3x
23x
12a+18a-20
30a-20
What is a constant?
A number, without a variable.
7x + 3x
10x
10x+2x-4x
8x
9x+5+4
9x+9
7x-6x-x
0
What are like terms?
9m+5m
14m
2x-x
x
8x+15+2x
10x+15
5-5x+13
-5x+18
What is a coefficient?
A number multiplied with a variable
6x-2x
4x
2x-6x+5x
x
8a+6-2n+1
8a-2n+7
What is an equation?
An equation is an algebraic expression with an = sign
7n+2n+1n
10n
1-2b
2+x+7y
2+x+7y
6y-2x+2+5y+4x
11y+2x+2