Mathematics
Mathematics, 03.11.2020 01:00, coreen9

Nigel makes the claim that x=6 is the solution to the equation 4(5xβˆ’12)βˆ’7x=5x. His work to support his claim follows. (will give Brainlist)

Given: 4(5xβˆ’12)βˆ’7x=5x

Step 1: 20xβˆ’48βˆ’7x=5x

Step 2: 20xβˆ’7xβˆ’48=5x

Step 3: 13xβˆ’48=5x

Step 4: 13xβˆ’13xβˆ’48=5xβˆ’13x

Step 5: 0βˆ’48=βˆ’8x

Step 6: 6=x

Which of the following justifications can be used to justify and support Nigel's work?

Select all justifications that are correct.

1. Step 5 is justified by the Property of Additive Inverses.

2. Step 6 is justified by the Associative Property.

3. Step 1 is justified by the Distributive Property.

4. Step 4 is justified by the Symmetric Property.

5. Step 2 is justified by the Commutative Property.

answer
Answers: 2

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Nigel makes the claim that x=6 is the solution to the equation 4(5xβˆ’12)βˆ’7x=5x. His work to support h...

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