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16. Devin was asked to subtract the expression 5x - 7 and -2x + 6. His work is shown below. (5x-7) −(−2x+6) = 5x - 7+2x+6 = 5x + 2x - 7+6 = 7x-1 Step 1 Step 2 Step 3 Step 4 In which Step did Devin make
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1 vote
16. Devin was asked to subtract

the expression 5x - 7 and
-2x + 6. His work is shown
below.
(5x-7) −(−2x+6)
= 5x - 7+2x+6
= 5x + 2x - 7+6
= 7x-1
Step 1
Step 2
Step 3
Step 4
In which Step did Devin
make his first mistake?
Explain.explain

User Amit Kumar Ghosh
by
7.2k points

1 Answer

3 votes

Answer:

2

Explanation:

he must multiply the bracket by -

User Das
by
6.9k points
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