Isabella solved the following equation: 4x – 2x + 8 = 6(x + 4) Step Work Justification 1 4x – 2x + 8 = 6x + 24 Distributive Prop
erty 2 2x + 8 = 6x + 24 Combine like terms 3 −4x + 8 = 24 Addition property of equality 4 −4x = 16 Subtraction property of equality 5 x = −4 Division property of equality Which step has an incorrect justification? (Make sure to type only the number of the step into the blank: 1, 2, 3, 4 or 5)
Step 2 is incorrect because Isabella is not combining like terms but doing Subtraction between two like terms that were already on the same side of the equality.
