Solving Multistep Equations
Presentation
•
Mathematics
•
7th - 8th Grade
•
Medium
+2
Standards-aligned
Stacy Strickland
Used 399+ times
FREE Resource
5 Slides • 11 Questions
1
Solving Multi-Step Equations
Follow along and answer the question in this Quizizz Lesson.
In case you need a little help, I have included some informational slides to help out.
2
Simplifying before Solving
As you can see in the photo to the right, some equations must be simplified before they can be solved.
The goal is to simplify the equation into a two-step equation.
The first 3 steps of this problem show how to simplify the equation.
After simplifying, we can see that we have a two-step equation and we use inverse operations to solve.
3
If an equation contains parentheses, like the ones you see in these examples, you must distribute the value on the outside to get rid of the parentheses.
Remember, distribute means to multiply!
Distributive Property
With all POSITIVE values.
Be careful with negatives!
4
Multiple Choice
5(a + 6)
5a + 6
a + 30
5a + 30
5a - 30
5
Multiple Choice
6
Multiple Choice
When an equation has parentheses, which operation should we use to simplify and get rid of the parentheses?
Add
Subtract
Multiply
Divide
7
Multiple Choice
-9(g - 3)
-9g + 27
9g + 27
-9g + -27
-9k - 27
8
Sometimes, to simplify an equation, it could involve combining like terms.
As you can see in the example, regrouping the like terms makes it easier to combine.
Combine Like Terms
When combining like terms, pay attention to the sign in front of each term.
Combining could mean we add or subtract.
9
Multiple Choice
Simplify the expression:
3a+7−2a
8a
12a
a + 7
5a + 7
10
Multiple Choice
Simplify the expression:
n−10+9n−3
11
Multiple Choice
Simplify the expression:
4x−3+2−2x
6x + 5
2x + 1
2x - 1
6x - 1
12
Multiple Choice
Simplify the expression:
−9w+7−4w−16
-13w -9
5w -23
-13w - 23
-5w - 9
13
Solving Multi-Step Equations
The first 3 steps of this problem show how to simplify the equation.
After simplifying, we can see that we have a two-step equation and we use inverse operations to solve.
On the next few slides, you will be asked to simplify and solve a few equations. Please complete these examples on page 22 of your notebook.
14
Multiple Choice
Simplify the following equation and solve for x:
2x−3+4x=27
Show your work on page 24 of your notebook.
x = 12
x = 4
x = 5
x = 15
15
Multiple Choice
Simplify the equation and solve for the variable.
24 = 3(3x −7)
Show your work on page 24 of your notebook.
x = −9
x = 5
x =3
x = 7
16
Multiple Choice
Simplify the following equation and solve for x:
3x+2(4x−4)=3
Show your work on page 24 of your notebook.
x = 4
x = 3
x = 2
x = 1
Solving Multi-Step Equations
Follow along and answer the question in this Quizizz Lesson.
In case you need a little help, I have included some informational slides to help out.
Show answer
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