Mathematics, 13.09.2021 04:50 scottytohotty
Consider the sequence of steps to solve the equation: 2(x - 4) + 6x = 9x - 10
Given = 2(x - 4) + 6x = 9x - 10
Step 1 = 2x - 8 + 6x = 9x - 10
Step 2 = 2x + 6x - 8 = 9x - 10
Step 3 = 8x - 8 = 9x - 10
Step 4 = 8x - 8x - 8 = 9x - 8x - 10
Step 5 = 0 - 8 = x - 10
Step 6 = -8 = x - 10
Step 7 = -8 + 10 = x - 10 + 10
Step 8 = 2 = x + 0
Step 9 = 2 = x
Which step in solving this equation is justified by the Additive Identity Property?
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A)
Step 3 = 8x - 8 = 9x - 10
B
Step 4 = 8x - 8x - 8 - 9x - 8x - 10
Step 5 = 0 - 8 = x - 10
D
Step 6 = -8= x - 10
Answers: 3
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Consider the sequence of steps to solve the equation: 2(x - 4) + 6x = 9x - 10
Given = 2(x - 4) + 6...
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