Isabella solved the following equation: 4x – 2x + 8 = 6(x + 4) step work justification 1 4x – 2x + 8 = 6x + 24 distributive property 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.

Step-by-step explanation:

step 2

Step-by-step explanation:

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.

x= -3

step-by-step explanation:

step 1: simplify brackets

4 - x - 1 = 6

step 2: simpilfy

3 - x = 6

step 3: subtract 3 from both sides

-x = 6 - 3

step 4: simpilfy 6 - 3

-x = 3

step 5: multiply both sides by -1

x = -3