Answered



4x + 5x + 12 = -6 (given)

9x + 12 = -6 (simplify)

9x = -18 (subtraction)

x = -2 (addition)


Which reason is incorrect?

Aaddition
Bgiven
Csimplify
Dsubtraction

Verified Answer :

The last step is incorrect. Addition is NOT used. Instead, division is used since both sides were divided by 9

So the answer is choice A) addition.

Answer:

Addition

Step-by-step explanation:

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