The work of a student to solve the equation 2(4x – 4) = 8 + 4x + 4 is shown below: step 1. 2(4x – 4) = 8 + 4x + 4 step 2. 6x – 6 = 12 + 4x step 3. 6x – 4x = 12 + 6 step 4. 2x = 18 step 5. x = 9 in which step did the student first make an error and what is the correct step? step 2,8x – 6 = 2(6 + 2x + 2) step 2,8x – 8 = 12 + 4x step 3,6x – 4x = 12 – 6 step 3,6x + 4x = 12 + 6

1) The step 2 is wrong.

2) the correct step is  8x - 8 = 12 + 4x

Step-by-step explanation:

2(4x – 4) = 8 + 4x + 4

Step 1. :

= 2(4x – 4) = 8 + 4x + 4

Step 2. :

=6x – 6 = 12 + 4x ( wrong)

This was wrong because , 2 multiplied by 4 is 8 not 6.

The correct way:

Step 1. :

2(4x – 4) = 8 + 4x + 4

Step 2. :

Step 3. :

Step 4. :

Step 5. :

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

tap for more

m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0