Question

Find the Mistake: provided below is a solution to the equation 3x − 8 = 2x + 12. Choose the statement that is true about the given solution.


Line # 3x − 8 = 2x + 12
1 3x = 2x + 20
2 5x = 20
3 x = 4

The entire solution is correct.

The provided solution is wrong. There is a mistake in Line #1.

The provided solution is wrong. There is a mistake in Line #2.

The provided solution is wrong. There is a mistake in Line #3.

Answer 1

look at line 2....what do you see ?

Answer 2

no 2x

Answer 3

or3

Answer 4

the mistake was they added 2x instead of subtracting 2x

Answer 5

oh so the mistake is in line 2

Answer 6

3x = 2x + 20 is correct.
From there, you subtract 2x from both sides leaving you with 3x - 2x = 20....x = 20. Mistake is in line 2.

Answer 7

thx

Answer 8

anytime :)