Question

PLEASE HELP ME ASAP!! I had trouble with this and it is now over due

QA1

Look at the way that Shira answered the question above.


A)Explain her mistake in complete sentences.


B) Explain how to solve the equation correctly.




QA2.

Look at the way that Samuel answered the question above.


A)Explain his mistake in complete sentences.


B) Explain how to solve the equation correctly.

Answer 1

Shira: x = 8

Samuel: m = 0

Explanation:

Shira's mistake was that she subtracted 2 from both sides instead of adding to on both sides.

Correct Solving:

2x - 2 = 14

Add 2 to both sides;

2x = 16

Divide both sides by 2;

x = 8

Samuel's mistake was that when he distributed -2 to 8m and 8 he put the wrong sign for -2 * 8.

Correct Solving:

-2(8m + 8) = -16

Distribute;

-16m - 16 = -16

Add 16 to both sides;

-16m = 0

Divide both sides by -16;

m = 0