Question

Provided below is a solution to the equation 8x + 7 − 2x = 27 − 2. Choose the statement that is true about the given solution.

Line # 8x + 7 − 2x = 27 − 2
1 6x + 7 = 25
2 x + 7 = 19
3 x = 12

I think the mistake is in line two?

Answer 1

Both 2 and 3 are incorrect.

The best way to check this is to solve the equation: First combine line terms
6x = 18
Thus x = 3
Well right off the bat we can see 3 is wrong. To check to, put "3" into x. 3 + 7 = 10, which does not equal 19.

hope that Helps

Answer 2

So line 3 is wrong?

Answer 3

Both Line 2 and 3.

Answer 4

Ok thanks! :)