*30 POINTS*
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Circle the step where the error has occurred.

Explain why it is an error and what should have been done to solve the problem correctly.

Given | 2(10−13x)+9x=−34x+60
Step 1: Distribute | 20−26x+9x=−34x+60
Step 2: Combine like Terms | 20−17x=−34x+60
Step 3: Subtraction Property of Equality | −17x=−34x+40
Step 4: Addition Property of Equality | −51x=40
Step 5: Division Property of Equality | x=−51/40

Respuesta :

Answer:

Step 4

Step-by-step explanation:

Step 4 is incorrect because when you add the number from the right side, -34, you make it a positive coming to the left side, -17, which stays the same. so 34+-17, will give you 17.

This will make Step 4: Addition property of equality: -17x=40

Therefore Step 5 is also incorrect, and should look like: Step 5: Division Property of Equality: x= 40/-17

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