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Which reason is incorrect? 4x + 5x + 12 = -6 (given) 9x + 12 = -6 (simplify) 9x = -18 (subtraction) x = -2 (addition)
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3 votes
Which reason is incorrect?

4x + 5x + 12 = -6 (given)
9x + 12 = -6 (simplify)
9x = -18 (subtraction)
x = -2 (addition)

User Deesbek
by
4.7k points

2 Answers

3 votes
the SUBTRACTION is incorrect. you’re suppose to do the opposite and add 6 to 12 and get 18. then you do 18/9 and get 2!
User Manish Mahajan
by
5.6k points
5 votes
The last one is incorrect. The correct answer is division. They divided 9 on both sides.
User Drunkmonkey
by
5.2k points
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