When attempting to do his homework, mark incorrectly uses the addition property of equality below. which statement would correct mark’s error?
1) 8 + x = 2
2) 8 – 8 + x = 2
3) x = 2
a.
to balance the equation, mark should also subtract 2 from the right side of the equation in step 2.
b.
to balance the equation, mark should also subtract 2 from both sides of the equation in step 2.
c.
to balance the equation, mark should also subtract 8 from the right side of the equation in step 2.
d.
to balance the equation, mark should also add 8 to both sides of the equation in step 2.

1)

2)

3) x=2

For this case if we see the second step Mark subtract 8 from the left part of the equation but not subtract 8 from the right side of the equation, and that's an error.

So then the correct answer for this case would be:

C.  To balance the equation, Mark should also subtract 8 from the right side of the equation in step 2.

2)

3)

Step-by-step explanation:

For this case we have the following equation:

And Mark's use the following procedure to solve it:

1)

2)

3) x=2

For this case if we see the second step Mark subtract 8 from the left part of the equation but not subtract 8 from the right side of the equation, and that's an error.

So then the correct answer for this case would be:

C.  To balance the equation, Mark should also subtract 8 from the right side of the equation in step 2.

2)

3)

to find the total number of combinations, multiply the quantity of each item by each other:

2 pairs of shoes x 3 pairs of shorts = 6 different combinations.