Equivalent Equations
Presentation
•
Mathematics
•
9th Grade
•
Hard
Joseph Anderson
FREE Resource
11 Slides • 8 Questions
1
(x and /)
Objective: create and identify equivalent equations.
2
Fill in the Blanks
WARMUP: If 8x - 4 = -9 then 8x - 15 = ?
Type answer...
3
Adding the same number to both sides of an equal sign makes an equivalent equation.
8 + 5 = 13
is equivalent to
8 + 5 + 4 = 13 + 4
4
Subtracting the same number from both sides of an equal sign makes an equivalent equation.
8 + 5 = 13
is equivalent to
8 + 5 - 4 = 13 - 4
5
Dividing both sides of an equal sign by the same number makes an equivalent equation.
is equivalent to
10 + 6 = 16
and equivalent to
6
If you divide both sides by 3 what is the result?
3x - 15 = 30
7
Fill in the Blanks
If both sides are divided by 2, what is the result?
−80=4−18x
Type answer...
8
Which equations are equivalent to: 16 - 4x = 36
8 - 2x = 18
12 - x = 32
4 - x = 9
9
Multiple Select
Which equation(s) are equivalent to 7x - 14 = 21 ?
x - 2 = 3
7x - 20 = 15
7x - 1 = 22
10
Multiple Select
Which equations are equivalent to p - h = 24?
2p−h=12
3p−h=6
−4p−h=−6
−1p−h=23
11
If 10x - 8 = 22 then 5x - 4 = ?
12
Fill in the Blanks
If 35x - 7 = 14 then 5x - 1 = ?
Type answer...
13
Multiplying both sides of an equal sign by the same number makes an equivalent equation.
is equivalent to
2x - 9 = 3
and simplifies to
4(2x - 9) = 3 x 4
8x - 36 = 12
14
If you multiply both sides by 3 what is the result?
8x - 1 = 4
15
Fill in the Blanks
If both sides are multiplied by 5, what is the result?
4 + 7x = -4
Type answer...
16
Which equations are equivalent to: 3x - 2 = -9
6x - 2 = -54
-6x + 4 = 18
30x - 20 = -90
17
Multiple Select
Which equations are equivalent to 4 = 6 - 9x?
8 = 12 - 18x
20 = 30 - 45x
12 = 18 - 12x
-8 = -12 + 18x
-12 = -18 - 27x
18
If 6x + 1 = -3 then 24x + 4 = ?
19
Fill in the Blanks
If -3x - 2 = -6 then 6x + 4 = ?
Type answer...
(x and /)
Objective: create and identify equivalent equations.
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