For this case we observe that we have the following inequality:
-4 (x + 8) + 25 ≤ -2 + 1 (x - 50)
The first step is the distributive property on both sides of the inequality:
-4x - 32 + 25 ≤ -2 + 1x - 50
This step is written correctly.
The second step is to add similar terms:
-4x - 7 ≤ 1x - 52
This step is written correctly.
The third step is to pass the number 7 adding on the right side of the inequality:
-5x ≤ -45
This step is written correctly.
The last step is to divide between 5 both sides of the inequality. Then, multiply by -1. When multiplied by -1, the direction of the inequality changes:
x ≤9
This step is written incorrectly.
Answer:
Andrew did not change the symbol of the inequality in the last step.
