Equivalent Equations
Presentation
•
Mathematics
•
9th Grade
•
Medium
+2
Standards-aligned
Simona Spinner
Used 10+ times
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0 Slides • 17 Questions
1
Multiple Select
Select all the equations that have the same solution as 2x−5=15 .
2x=10
2x=20
2(x−5)=15
2x−20=0
4x−10=30
2
Multiple Choice
Which equation is equivalent to the equation 5x+30=45 ?
35x=45
5x=75
5(x+30)=45
5(x+6)=45
3
Multiple Choice
The entrepreneurship club is ordering potted plants for all 36 of its sponsors. One store charges $8.50 for each plant plus a delivery fee of $20. The equation 320=x+7.50(36) represents the cost of ordering potted plants at a second store.
What does the x represent in this situation?
The cost for each potted plant at the second store
The delivery fee at the second store
The total cost of ordering potted plants at the second store
The number of sponsors of the entrepreneurship club
4
Multiple Choice
Kiran says that a solution to the equation x+4=20 must also be a solution to the equation 5(x+4)=100 . Select the most convincing reason why this is true.
It just is.
If you multiply both sides of x+4=20 by 5, you get 5(x+4)=100 .
Because 5x+4=100 .
The equations are just equivalent.
5
Fill in the Blanks
Type answer...
6
Multiple Select
Select all equations that are equivalent to
3(x+6)=4x+7 .
3(x+6)=4x+7
3x=4x+7
3x+18=4x+7
18=x+7
7
Multiple Choice
Which equation is equivalent to the equation 5x+30=45 ?
35x=45
5x=75
5(x+30)=45
5(x+6)=45
8
Multiple Choice
Diegos's age is n is 5 more than 2 times his sister's age s. This situation is represented by the equation d=2s+5. Which equation is equivalent to the equation d=2s+5?
d=2(s+5)
d−5=2s
d−2=s+5
2d=s+5
9
Dropdown
10
Drag and Drop
2x - 6 = -40
12x - 36 = -240
4x - 15 = -83
4x - 9 = -77
11
Match
Match the equivalent equations
7x - 2 = -13
7x + 2 = -13
2x - 7 = -13
7x - 2 = 13
2x + 7 = 13
14x - 4 = -26
-21x - 6 = -39
10x - 70 = -65
-28x + 8 = -52
-4x - 14 = -26
14x - 4 = -26
-21x - 6 = -39
10x - 70 = -65
-28x + 8 = -52
-4x - 14 = -26
12
Match
Match the equivalent equations
4 - 3x = -5
4 + 3x = -5
3 + 4x = 5
-3 + 4x = 5
5 - 4x = 3
8 - 6x = -10
-8 - 6x = 10
9 + 12x = 15
-6 + 8x = 10
25 - 20x = 15
8 - 6x = -10
-8 - 6x = 10
9 + 12x = 15
-6 + 8x = 10
25 - 20x = 15
13
Multiple Select
Which equations are equivalent to 1 = 11x - 7 ?
2 = 22x - 14
2 = 22x - 7
-1 = -11x + 7
3 = 11x - 21
-3 = -33x + 21
14
Fill in the Blanks
15
Fill in the Blanks
Type answer...
16
Multiple Select
Which equation(s) are equivalent to x−y=−18 ?
2x−y=−9
−9x−y=−2
−9x−y=2
−x+y=18
x+y=18
17
Fill in the Blanks
Select all the equations that have the same solution as 2x−5=15 .
2x=10
2x=20
2(x−5)=15
2x−20=0
4x−10=30
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