Question

What mistake did Student A make??Correctly solve the problem and how u got that answer (show your work)

Answer 1

Student A added +3x in the fourth line instead of substracting it to cancel the 3x.

The correct solution is:

`3(x+2)+10=6x-2`
`3x+6+10=6x-2`
`3x+16=6x-2`
`3x+16-3x=6x-2-3x`
`16=3x-2^{}`
`16+2=3x-2+2`
`18=3x`
`(18)/(3)=(3x)/(3)`
`6=x`

Then the correct solution to this problem is x=6