Mathematics, 15.04.2020 02:56 jaanne
Nigel makes the claim that x=6 is the solution to the equation 4(5x−12)−7x=5x. His work to support his claim follows.
Given: 4(5x−12)−7x=5x
Step 1: 20x−48−7x=5x
Step 2: 20x−7x−48=5x
Step 3: 13x−48=5x
Step 4: 13x−13x−48=5x−13x
Step 5: 0−48=−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.
Answers: 1
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Nigel makes the claim that x=6 is the solution to the equation 4(5x−12)−7x=5x. His work to support h...
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