Combining Like terms
5x+2-2x+3
3x+5
Positive
x+12 x=5
17
Expressions that have one term
monomial
6x+12x-x
17x
6-(-4)
10
10 (2/5x)
4x
Expressions with 2 terms
binomials
2(3x+5)+2(x-2)
8x+6
(-2)(7)+(-9)(-7)
49
-3m+17 m=4
5
Expressions with three terms
trinomial
6x+4-(2x-3)
4x+7
(-4)2 +3(-3)-2
5
-4(5x+1)
-20x-4
What is the associative property of addition?
Changing the grouping of numbers does not change the sum.
2/10y- 3/20y
1/20 y
6-12+4+10-1+6-7
6
-12(6x-10)
-72x+120
What does PEMDAS stand for?
It stands for
P- Parentheses, E- Exponents, M- Multiplication, D- Division, A- Addition, and S- Subtraction.