Question

Which expression does not belong with the other three? Explain your reasoning. 8 = x —2 3 = x ÷ 4 x − 6 = 5 x —3 = 9

Answer 1

• 3 = x ÷ 4

Explanation:

Given expressions:

• 8 = x - 2 ⇒ x = 8 + 2= 10
• 3 = x ÷ 4 ⇒ x = 3*4 = 12
• x - 6 = 5 ⇒ x = 5 + 6 = 11
• x - 3 = 9 ⇒ x = 9 + 3 = 12

3 of them involves addition, one of them - multiplication

The second expression doesn't belong