Equivalent Equations (+ and -)
Presentation
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
Christopher Gassler
Used 17+ times
FREE Resource
11 Slides • 9 Questions
1
(+ and -)
Objective: create and identify equivalent equations.
2
Equivalent: two meanings, numbers, or quantities that are the same.
Examples:
NOTE: look at each side of the equal sign like it's own seperate entity. NOT like a sentence
3
4 + 2 x 3 - 2 = 44 ÷ 2
2(x + 9) = 24 + 2x - 6
4
Multiple Select
Choose all the equivalent expressions.
12+12−3x=3(x+8)
8−3×3+5=10−12÷2
4x+12=4x+6+6
56÷7=4+3
5
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
6
If 5 is added to both sides what is the result?
3x - 15 = 32
7
Fill in the Blanks
If 4 is added to both sides, you simplify both sides, what is the resulting equation?
5x + 9 = 3
Type answer...
8
Fill in the Blanks
If 9 is added to both sides, you simplify both sides, what is the resulting equation?
2x - 3 = 8
Type answer...
9
Which equations are equivalent to: 4x - 1 = 6
4x + 6 = 12
4x + 2 = 9
4x - 2 = 7
10
Multiple Select
Which equation(s) are equivalent to 3x - 10 = 6 ?
3x - 6 = 10
3x - 15 = 11
3x = 16
11
If 4x - 1 = 6 then 4x + 5 = ?
12
Fill in the Blanks
If -7x - 6 = 13 then -7x - 5 = ?
Type answer...
13
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
14
If 6 is subtracted from both sides what is the result?
7x - 22 = 10
15
Fill in the Blanks
If 7 is subtracted from both sides, what is the result?
12x + 9 = 15
Type answer...
16
Fill in the Blanks
If 7 is subtracted from both sides, what is the result?
4x - 12 = -24
Type answer...
17
Which equations are equivalent to: 8x - 3 = 4
8x - 6 = 1
8x - 2 = 3
8x - 4 = 3
18
Multiple Select
Which equation(s) are equivalent to 9x + 7 = -11 ?
9x + 3 = -15
9x + 3 = -7
9x + 11 = -15
19
If 3x + 9 = -7 then 3x + 2 = ?
20
Fill in the Blanks
If 8x + 2 = -5 then 8x - 5 = ?
Type answer...
(+ and -)
Objective: create and identify equivalent equations.
Show answer
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