Equation Replacement Challenge
Authored by Khadija .
Mathematics
7th Grade
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Solve for x: 3x + 5 = 14
x = 6
x = 5
x = 3
x = 4
Answer explanation
Subtract 5 from both sides to isolate 3x, then divide by 3 to find x = 3.
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Find the value of x in the equation: 2x - 7 = 11
5
13
3
9
Answer explanation
To find x, add 7 to both sides of the equation: 2x = 18. Then, divide by 2 to get x = 9. Therefore, the correct answer is 9.
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What is the solution to the equation: 4x = 20
x = 2
x = 10
x = 5
x = 4
Answer explanation
To solve the equation 4x = 20, divide both sides by 4 to isolate x. Therefore, x = 20 / 4 = 5. Hence, the correct answer is x = 5.
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Determine the value of x in the equation: 5x - 3 = 22
x = 5
x = 3
x = 10
x = 7
Answer explanation
To solve for x, add 3 to both sides of the equation: 5x = 25. Then divide by 5 to get x = 5. Therefore, x = 5 is the correct choice.
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Solve for x: 6x + 9 = 33
x = 5
x = 7
x = 4
x = 6
Answer explanation
To solve for x, first subtract 9 from both sides to isolate 6x. This gives 6x = 24. Then, divide by 6 to find x = 4. Therefore, x = 4 is the correct choice.
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Find the value of x in the equation: 3x - 4 = 8
x = 4
x = 5
x = 2
x = 10
Answer explanation
To find the value of x, add 4 to both sides of the equation: 3x - 4 + 4 = 8 + 4. Simplify to get 3x = 12. Divide by 3 to get x = 4. Therefore, x = 4 is the correct choice.
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What is the solution to the equation: 2x = 16
x = 4
x = 12
x = 10
x = 8
Answer explanation
To solve the equation 2x = 16, divide both sides by 2 to isolate x. Therefore, x = 16 / 2 = 8. Hence, the correct answer is x = 8.
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