issakayla3 issakayla3

17-04-2020
Mathematics

contestada

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

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fadedfire07 fadedfire07

17-04-2020

The last one is incorrect. The correct answer is division. They divided 9 on both sides.

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jdjohnson623 jdjohnson623

17-04-2020

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!

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