3 years ago

Ali was asked to simplify the expression 3(x - 6) + (4x + 12) - 6x. His work is shown below.

1 answer:

6 0

Answer:

Step 2 is wrong.

It should be 3x – <u>18</u> + 4x + 12 – 6x

Explanation:

3(x – 6) + (4x + 12) – 6x →

3x – 18 + 4x + 12 – 6x →

(3x + 4x – 6x) + (-18 + 12) →

x – 6

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