What is Thuy’s error?
2 answers:
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Answer:
x = -9/2
Step-by-step explanation:
1. Divide 9 by -1/3:
÷
=
·
= -27
2. Divide both sides by 2:
2(x - 9) = -27
(x - 9) =
3. Add 9 to both sides:
x =
(or 4.5 if you need it in decimal form)
hope this helps!