Consider the sequence of steps to solve the equation: 2(x - 4) + 6x = 9x - 10 Given = 2(x - 4) + 6x = 9x - 10
Step 1 => 2x - 8 + 6x = 9x - 10
Step 22x + 6x - 8 = 9x - 10
Step 3 8x - 8 = 9x - 10
Step 4 -> 8x - 8x - 8 = 9x - 8x - 10
Step 5 = 0 - 8 = x - 10
Step 6 = -8 = x - 10
Step 7-8 + 10 = x - 10 + 10
Step 8 = 2 = x+ 0
Step 9 = 2 = x
Which step in solving this equation is justified by the Additive Identity Property?
A)
Step 3 = 8x - 8 - 9 - 10
B)
Step 4 = 8x - 8x - 8 = 9x - 8x - 10
)
Step 5 = 0 - 8 = x - 10
D)
Step 6 = -8 = x - 10