

Final Exam Review| Equations
Presentation
•
Mathematics
•
7th Grade
•
Hard
+4
Standards-aligned
Catherine Thompson
Used 13+ times
FREE Resource
6 Slides • 14 Questions
1
Final Exam Review| Inequalities and Equations
Let's do it

2
Multiple Choice
Simplify:
3x + 2y - 5x + y
-2x + 3y
8x + 3y
5xy
3
How do you multiply a number by a variable?
To multiply a number by a variable, remember there is always a 1 in front of that variable if the variable is alone. 4(x)= 4x It is like multiplying 4 times 1x
4
Multiple Choice
7(x)=
7x
7+x
5
Multiple Select
4(a + 3)
4a + 3
4 + 3
4a + 12
a + 12
6
Fill in the Blanks
Type answer...
7
What is an equation?
Equation: an algebraic sentence with an equal sign
The goal of Solving Equations: to isolate the variable (get it by itself)
To Isolate the Variable: Use Inverse Operations! (do the opposite!)
Justify Your Work: Properties of Equality
8
One-Step Equations
These are equations you can solve in one step by doing the OPPOSITE operation.
9
Multiple Choice
Solve x + 6 = 10
10
6
4
16
10
Multiple Choice
Solve
4x=12
4
3
12
48
11
Multiple Choice
Laurie rode her bike 17.5 miles in 2 hours. She uses this equation to represent the relationship between her time and distance.
2x = 17.5
What does the solution x= 8.75 represent?
The distance Laurie rode her bike.
The time Laurie spent riding her bike.
The distance Laurie traveled per hour.
Not here
12
Two Step Equations
These are equations that you can solve in two steps
Typically, the FIRST step is to take care of any addition or subtraction
Tyipcally, the SECOND step is to take care of any multiplication or division
There are SOME cases where the steps may be different, but that is usually if you have exponents, parentheses, or a BIG division problem
13
Multiple Choice
Solve 8 + 4x = 24
2
4
8
24
14
Multiple Choice
Solve
2x−11=13
4
48
24
12
15
Multiple Choice
Greg wrote in his math journal that 17 - x = 9 is an example of an algebraic equation. Which statement is true about the example Greg wrote in his math journal?
Greg's example is an equation because there is a variable present.
Greg's example is an equation because it is a number sentence stating two amounts are equivalent.
Greg's example is an equation because x can represent any value.
Greg's example is an equation because there are two numbers present.
16
Multi Step Equations
DISTRIBUTE first
COMBINE second
Get x's on one side
SADME to finish
17
Multiple Choice
Solve 2x + 3x - 6 = 14
20
10/3
4
14
18
Multiple Choice
Solve -4(3x - 6) = 48
-6
-2
2
-12
19
Multiple Choice
Solve (HINT - take care of the division FIRST, then the addition)
7x+4=8
52
60
28
84
20
Multiple Choice
Challenge Question: Solve 10 - (4x - 3) = 2x - 7
10/3
7/3
5/2
17
Final Exam Review| Inequalities and Equations
Let's do it

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