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Zack used these steps to solve this equation: Three-fourths y + 5 = negative three-fourths y minus 9. Step 1: StartFraction 6 Over 4 EndFraction y + 5 = negative 9. Step 2: StartFraction 6 Over 4 EndFraction y = negative 14. Step 3: (StartFraction 6 Over 4 EndFraction) StartFraction 6 Over 4 EndFraction y = negative 14 (StartFraction 6 Over 4 EndFraction). Step 4: y = negative 21. When Zack checked his solution, it didn’t work. What was his mistake? In step 1, he should have used the multiplication property of equality. In step 2, he should have a constant of – 4 on the right side. In step 3, he should have divided both sides by StartFraction 6 Over 4 Endfraction. In step 4, the answer should be positive.

2 Answers

3 votes

Answer: The answer is C.

Step-by-step explanation: I got the answer correct, hope this helps!

User Qxo
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1 vote

Answer:

C.In step 3, he should have divided both sides by 6/4.

Explanation:

I just took the assignment

User Matthew Weeks
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4.8k points