Pre Assessment- Two step Equations
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Easy
+1
Standards-aligned
Claudia Mejia
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
A two step equation is an equation that requires one operation to solve?
True
False
Answer explanation
A two step equation requires only two steps to solve and find the variable. An example of a two step equation is: 2x+3=7
Tags
CCSS.7.EE.B.4A
2.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Why do we use inverse operations when solving two step equations?
To isolate the variable
To simplify the constants
To make the equation more complex
To add more steps to the solution
Answer explanation
The goal in solving an equation is to get the variable alone on one side of the equation and a number on the other side of the equation. In order to do this we must isolate the variable by reversing the operations acting on the variable. For example if we have 4x the inverse operation of multiplication is division so we would divide 4x by 4
Tags
CCSS.7.EE.B.4A
3.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Solve the equation 2x + 8 =18. What is x?
7
6
8
5
Answer explanation
To solve the equation 2x + 8 = 18, first subtract 8 from both sides to get 2x = 10. Then divide by 2 to find x = 5. Therefore, x = 5 is the correct answer.
Tags
CCSS.7.EE.B.4A
4.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
In the equation 3x+4=19, what is the first step to solve for x?
Add 4 to both sides
Divide both sides by 3
Subtract 4 from both sides
Multiply both sides by 2
Answer explanation
To solve for x in the equation 3x+4=19, the first step is to subtract 4 from both sides to isolate the variable x.
Tags
CCSS.7.EE.B.4A
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Which of the following solutions is correct for the equation 4x+6=18?
x=1
x=4
x=3
x=2
Answer explanation
To solve the equation 4x+6=18, first subtract 6 from both sides to get 4x=12. Then divide by 4 to find x=3. Therefore, the correct solution is x=3.
Tags
CCSS.6.EE.B.5
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
If you were to create a two step equation where the value of x =4 what would the equation look like?
2x+4=11
2x+3=11
3x+2=11
3x+3=11
Answer explanation
The correct equation for x=4 would be 2x+3=11. Plugging in x=4 gives 2(4)+3=11, which simplifies to 8+3=11.
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
A variable in a equation is a symbol representing a number.
True
False
Answer explanation
A variable is a term or a letter of the alphabet that represents an unknown number. Your variable can look like this : 2x or 2m or 2n
Tags
CCSS.6.EE.B.6
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