Combining Like Terms
14m + 11 - 9m + 1
5m + 12
What is the coefficient? 8x+1
8
23 + 9 - (4⋅8)
0
Evaluate 4(y-5)
if y=9
16
A number plus 4
n + 4
27x - 25x + 9 + 5
2x + 14
How many terms are there? 3x/2+1
2
(9⋅2) ÷ 3 + 14
20
Evaluate 52 + n
n = 4
29
5n or n5
3r + 1 + 6x + 9r + 3x + 9
12r + 9x + 10
What are the variables? 4y+2x
y and x
36 ÷ 3⋅ 2
24
Evaluate 7(x+3) if x = 6
63
13-P
12x + 11s + 8x + 12 - 5s - 12
20x + 6s
In algebra, what is a constant?
a number by itself, not attached to a variable
13 + (17 - 5) ⋅ 8 / 2
61
Evaluate 23 + 32
17
6 less than some number, r
r-6
9 + 4x +12y +2x + 6 - 4y
6x + 8y + 15
What do coefficients tell us about the variable they are attached to?
What to multiply by or how many of that variable there are.
38 ⋅ 3 - 20 ÷ 2 + 6
110
Evaluate 16x + 2y if x = -2, y = 8
-16
The quantity of some number x added to five, then divided by 2
(x+5) / 2