Simplify Expressions
Distribute
3(4x + 2)
What is:
12x + 6
Solving Equations
Solve for x.
x + 3 = 7
What is:
x = 4
Solving Inequalities Solve for c. : c - 11 > 22
What is:
c < 33
We use inverse operations to solve equations and inequalities.
True
Our school principal.
Who is Mr. Haynes?
Simplify
3x + 2(5x - 7)
What is:
13x - 14
Solving Equations
Solve for x.
2x -8 = 8
What is:
x = 8
Solve
-2x < 4
x>-2
Addition is the inverse of division.
False
Our Middle School's mascot
What is Lightning.
Simplify
7x -2(3x + 1) -9
What is:
x - 11
Solving Equations
Solve for x.
7-2x=-8x+7
What is:
x = 0
Write an inequality
The baker made at most 55 cupcakes.
c <= 55
We use a open circle to represent the inequalities < and >
TRUE
What is the solution to 1.4 + a > 4.8?
a > 3.4
Simplify
6(-5x + 1) -3(4x - 12)
What is:
-42x + 42
Solve.
5x −8x +9 = −6(x +3)
x=-9
Write an Inequality to represent Brianna's age.
Brianna, who is not yet 21 years old, is 2 years older than Lily.
x + 2 < 21
Inequalities only have one solution, just like equations.
False. Inequalities have infinitely many solutions.
How many days in a non leap year?
365
Factor
3x + 6
What is:
3(x + 2)
27-5x=-3-5(x-6)
Infinite Solutions
Modeling and Solving Inequalities
Create an inequality to represent the scenario and interpert the solution.
Julie earns $7 for each car she washes. This week, she wants to save more than $56. How many cars must she wash?
What is:
7c > 56, Julie must wash more than 8 cars to make $56.
When solving an inequality we flip the direction of the inequality sign if we divide or multiply by a negative number.
TRUE
30h + 50 =290