Benjamin solved the following equation: 4x − 2x + 8 = 6(x + 4) step work justification 1 4x − 2x + 8 = 6x + 24 combine like terms 2 2x + 8 = 6x + 24 combine like terms 3 −4x + 8 = 24 subtraction property of equality 4 −4x = 16 subtraction property of equality 5 x = −4 division property of equality which step has an incorrect justification?

For this case we have the following expression:
 4x - 2x + 8 = 6 (x + 4)
 The first step is:
 4x - 2x + 8 = 6x + 24
 The first step is, correct.
 However, the justification "Combine like terms" is NOT correct.
 The correct justification is:
 Distributive property of multiplication.
 
 A step that has an incorrect justification is:
 Step 1

Answer Notion: f(-6)=8

f(3) is -2

f(x) = -5 when x is 4