Lily solved the equation 3x − 10 = -3x + 8. the explanation of her process is shown. select the text that shows an error in her process or justification of steps, if one exists

3x - 10 = -3x + 8

Add 3x to both sides

6x - 10 = 8

Add 10 to both sides

6x = 18

Divide both sides by 6

x = 3

the first one, all those points on the line just make a strait line.

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.