The Basics
Identify the like terms in: 3x + 2y + 5x
3x and 5x
Simplify: 12y - 5y
7y
Simplify: 3x + 2y + 4x
7x + 2y
Simplify: 2(x + 3)
2x + 6
You have x apples and your friend gives you 4x more apples. How many do you have?
5x apples
Simplify: 7a + 2a + 5b
9a + 5b
Simplify: -4k + 10k - 2
6k - 2
Simplify: 10a + 5b - 3a + 2b
7a + 7b
Simplify: 3(n + 5) + 2n
5n + 15
A triangle has sides of length 2n, 3n+1, and n+4. What is its perimeter?
6n + 5
Are 4x and 4x² like terms? Why or why not?
No, the variables must have the same exponent.
Simplify: 6b - 9b + b
-2b
Simplify: -2m + 4n - 6m - n
-8m + 3n
Simplify: 5(2y - 1) - 3y
7y - 5
ou buy 5 shirts that cost c dollars each and a pair of jeans for $20. What is the total cost?
5c + 20
Simplify: 10 + 3m + 8 + 2m
5m + 18
Simplify: 3.5x + 2.1x - 0.2
5.6x - 0.2
Simplify: x + y + z + x - y
2x + z
Simplify: -4(k - 2) + 6k
2k + 8
The length of a rectangle is 3x + 2 and its width is x + 5. What is the perimeter?
8x + 14
Simplify: p + p + p + q + q
3p + 2q
Simplify: 8z - 15z - 4 - z
-8z - 4
Simplify: 5ab + 2a - 3ab + 4b
2ab + 2a + 4b
Simplify: 6m + 2(3m - 4) + 5
12m - 3
You start with 10y dollars. You spend (2y + 5) dollars. How much money is left?
8y - 5 dollars