Find and fix mistakes in equation solutions

Question 1

Solving 6x + 15 = 9: Step 1: 6x = -6. Step 2: x = -12. Where is the first mistake?

• A. Step 1
• B. Step 2
• C. No mistake

Question 2

Hana expanded 5(x + 2) = 0 as 5x + 2 = 0, which gives a wrong answer. What is the correct value of x?

x = 

Question 3

Solving 8x + 8 = 64: Step 1: 8x = 56. Step 2: x = 48. Where is the first mistake?

• A. Step 1
• B. Step 2
• C. No mistake

Question 4

Chloe expanded 5(x + 6) = 80 as 5x + 6 = 80, which gives a wrong answer. What is the correct value of x?

x = 

Question 5

Solving 9x + 19 = 46: Step 1: 9x = 27. Step 2: x = 18. Where is the first mistake?

• A. Step 1
• B. Step 2
• C. No mistake

Question 6

Zara expanded 6(x + 1) = 6 as 6x + 1 = 6, which gives a wrong answer. What is the correct value of x?

x = 

Question 7

Solving 9x + 16 = 106: Step 1: 9x = 122. Step 2: x = 13.56. Where is the first mistake?

• A. Step 1
• B. Step 2
• C. No mistake

Question 8

Aisha expanded 5(x + 1) = 10 as 5x + 1 = 10, which gives a wrong answer. What is the correct value of x?

x = 

Question 9

Solving 2x + 18 = 42: Step 1: 2x = 60. Step 2: x = 30. Where is the first mistake?

• A. Step 1
• B. Step 2
• C. No mistake

Question 10

Priya expanded 2(x + 5) = 6 as 2x + 5 = 6, which gives a wrong answer. What is the correct value of x?

x = 

Question 11

Solving 5x + 13 = 53: Step 1: 5x = 40. Step 2: x = 8. Where is the first mistake?

• A. Step 1
• B. Step 2
• C. No mistake

Question 12

Elena expanded 4(x + 3) = -8 as 4x + 3 = -8, which gives a wrong answer. What is the correct value of x?

x = 

Question 13

Solving 9x + 1 = -26: Step 1: 9x = -27. Step 2: x = −3. Where is the first mistake?

• A. Step 1
• B. Step 2
• C. No mistake

Question 14

Ava expanded 6(x + 7) = 42 as 6x + 7 = 42, which gives a wrong answer. What is the correct value of x?

x = 

Question 15

Solving 8x + 3 = 91: Step 1: 8x = 88. Step 2: x = 80. Where is the first mistake?

• A. Step 1
• B. Step 2
• C. No mistake

Question 16

Ana expanded 6(x + 2) = 54 as 6x + 2 = 54, which gives a wrong answer. What is the correct value of x?

x =