First Steps (1)
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Matthew Vogel
FREE Resource
Enhance your content in a minute
43 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. 2x + 3 = 11
Divide both sides by 2
Subtract 3 from both sides
Add 3 to both sides
Multiply both sides by 2
Answer explanation
To solve for x, first subtract 3 from both sides of the equation 2x + 3 = 11. This simplifies to 2x = 8, making it easier to isolate x.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x/4 + 2 = 6
Multiply both sides by 4
Divide both sides by 4
Subtract 2 from both sides
Add 2 to both sides
Answer explanation
To isolate x, first subtract 2 from both sides of the equation. This gives x/4 = 4. Then, you can multiply both sides by 4 to solve for x. Thus, the correct first step is to subtract 2 from both sides.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5x - 7 = 18
Subtract 7 from both sides
Divide both sides by 5
Add 7 to both sides
Multiply both sides by 5
Answer explanation
To solve for x in the equation 5x - 7 = 18, we first need to isolate the term with x. Adding 7 to both sides eliminates the -7, leading to 5x = 25, which allows us to solve for x.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x/3 - 4 = 2
Subtract 3 from both sides
Add 4 to both sides
Multiply both sides by 3
Divide both sides by 3
Answer explanation
To solve for x, first isolate the term with x. Adding 4 to both sides of the equation x/3 - 4 = 2 gives x/3 = 6, which simplifies the equation correctly.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6x + 2 = -10
Add 2 to both sides
Multiply both sides by 6
Subtract 2 from both sides
Divide both sides by 6
Answer explanation
To isolate x, we need to eliminate the constant on the left side. Subtracting 2 from both sides simplifies the equation to 6x = -12, making it easier to solve for x.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. 3x + 4 = 13
Divide both sides by 3
Subtract 4 from both sides
Add 4 to both sides
Multiply both sides by 3
Answer explanation
To solve for x, first subtract 4 from both sides of the equation 3x + 4 = 13. This simplifies to 3x = 9, making it easier to isolate x.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. x/2 + 5 = 9
Multiply both sides by 2
Subtract 5 from both sides
Add 5 to both sides
Divide both sides by 2
Answer explanation
To solve for x, first subtract 5 from both sides of the equation. This simplifies it to x/2 = 4, making it easier to isolate x. Thus, the correct step is to subtract 5 from both sides.
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