Question

2) Consider the sequence of steps to solve the equation: x - 3/3 = x + 3 Step 1 ⇒ x - 3 = 3(x + 3) Step 2 ⇒ x - 3 = 3x + 9 Step 3 ⇒ x = 3x + 12 Step 4 ⇒ -2x = 12 Step 5 ⇒ x = -6 Identify the property of equality which yields Step 5.

Answer 1

Division property of equality

Explanation:

-2x = 12 {Divide both sides by -2}

-2x/-2 = 12/-2

x = - 6

Division property of equality