Question

Sue solved an equation incorrectly, as shown below:

Step 1: 7x = 28
Step 2: x = 28 − 7
Step 3: x = 21

Which statement best explains why Step 2 is incorrect in Sue's solution?

Answer 1

Answer:

Question

Sue solved an equation incorrectly, as shown below:

Step 1: 7x = 28

Step 2: x = 28 − 7

Step 3: x = 21

Which statement best explains why Step 2 is incorrect in Sue's solution?

Solution ⬇️

Step 1: 7x = 28✅

Step 2: x = 28 − 7❌

Step 3: x = 21❌

$= = > step \: 2 = x = \frac{28}{7} = \frac{4}{1} = 4$

$= = > step \: 2 = 4$

Correct answer ⬆️

Step-by-step explanation:

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