Mathematics, 21.04.2020 19:54 faithrawlins14
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.
Step 2 is justified by the Commutative Property.
Step 1 is justified by the Distributive Property.
Step 5 is justified by the Property of Additive Inverses.
Step 6 is justified by the Associative Property.
Step 4 is justified by the Symmetric Property.
Answers: 2
Mathematics, 22.06.2019 02:00, minosmora01
Deena is planting two rectangular gardens. one garden is 3.67 feet by 8.56 feet, and the other garden is 3.67 feet by 7.45 feet. which expression does not respresent the total area in square feet of the two gardens
Answers: 2
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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