Erry solved this equation: 3 (x -

1

4

) =

13

6

1. 3x -

3

4

=

13

6

2. 3x -

3

4

+

3

4

=

13

6

+

3

4

3. 3x =

26

12

+

9

12

4. 3x =

35

12

5. (

3

1

)

3

1

x =

35

12

(

3

1

)

6. x =

105

12

In which step did Jerry make an error?

In step 2, he should have subtracted Three-fourths from both sides.

In step 3, he should have found an LCD of 10.

In step 4, he should have subtracted 9 from 26.

In step 5, he should have multiplied both sides by One-third.

1.3x-34=136

3x=136+34

3x=170

divide both side by 3

3x/3=170/3

x=56.7 answer

2.3x-34+34=136+34

3x+0=136+34

3x+0=170

3x=170-0

3x=170

divide both side by 3

3x/3=170/3

x=56.7 answer

3.3x=2612+912

3x=3524

divide both side by 3

3x/3=3524/3

x=1174.7 answer

4.3x=3512

divide both side by 3

3x/3=3512/3

x=1170.7 answer

5. (31) 31x=3512 (31)

31*31x=3512*31

961x=108872

divide both side by 961

961x/961=108872/961

x=113.2903 answer

6. x=10512

the question is still the answer.