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Wapi simplified an expression. His work is shown below.

Wapi simplified an expression. His work is shown below.-example-1

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Answer:

Step 3

Explanation:

7( 8.5-1.5) +8 ÷2

PEMDAS

Parentheses

7*7 +8 ÷2

Then multiplication and division from left to right

49 +8 ÷2

We are still on multiplication and division

49+4

So step 3 is the first mistake

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