
Understanding Equation Equality and Substitution

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Sophia Harris
FREE Resource
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7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in determining if the equation 6 - 8x + 3 = 6 - 3 + 8x is true?
Substitute a value for x
Simplify both sides of the equation
Check if the constants are equal
Compare the coefficients of x
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are the terms 3 and -3 not equal in the equation 6 - 8x + 3 = 6 - 3 + 8x?
They are equal
They are both negative
They are both positive
They have different signs
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What result do you get when you substitute x = 2 in the equation 6 - 8x + 3?
7
-7
19
0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of substituting x = 2 in the equation 6 - 3 + 8x?
0
19
-7
7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of substituting a value for x in an equation?
To find the value of x
To check if the equation is true
To simplify the equation
To solve for x
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a smart approach to check if two expressions like 2a + 4 and 2 * a + 2 are equal?
Multiply both expressions
Add both expressions
Simplify both expressions
Substitute a value for a
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the simplified form of the expression 2a + 4?
2(a + 2)
a + 4
4a + 2
2a + 2
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