Question

Which equation does not belong with the other three? Explain your reasoning.

²³/x+ ²/3=y\
y = 0.5x -0.2
4x + 3 = y
y = x² +6
:: a linear equation
does not belong because it is
while the other three equations are
:: y = 0.5x -0.2 :: 4x +3=y :: y = x² +6
:: not a linear equation
:: not linear equations
x + = y
3/
:: linear equations

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