Suzie made a mistake in the following problem. the mistake was made in line only input the number of the first incorrect line. line 1 7(6) ÷ 5 + 42 line 2 7(6) ÷ 5 + 16 line 3 42 ÷ 5 + 16 line 4 42 ÷ 21 line 5 2

Mistake in Line 2

Step-by-step explanation:

Line 1  

7(6) ÷ 5 + 42  

Line 2  

7(6) ÷ 5 + 16  

Line 3  

42 ÷ 5 + 16  

Line 4  

42 ÷ 21  

Line 5  

2

To simplify any expression we use order of operation

Line 1 is 7(6) ÷ 5 + 42  

Order of operation is PEMDAS

First we start with parenthesis

so we multiply 7(6) in line 2

7*6- 42

So Line 2 is 42 ÷ 5 + 42  

Hence there is a mistake in Line 2

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