Mathematics, 28.09.2021 20:30 austinlogan3218

Alberto uses the steps below to solve the equation 1/2x-3 = 7.

Step 1:1/2x-3+3=7+3
Step 2:1/2x+0=10
Step 3:1/2x=10
Step 4: 2 (1/2)x = 2(10)
Step 5: 1x=20
Step 6: x = 20

Which justifies Step 6 of his work?

the addition property of equality
the identity property of addition
the multiplication property of equality
the identity property of multiplication

Answers: 1

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Alberto uses the steps below to solve the equation 1/2x-3 = 7.

Step 1:1/2x-3+3=7+3

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