206,674 views
2 votes
2 votes
Andre solved the equation 2x−9=10 In the following way. Why is Andre correct?

User PatrickDotStar
by
2.9k points

1 Answer

9 votes
9 votes
X equals 9.5, when you add the 9 to the other side you get 19. When you divide 2 by 19 you get 9.5 making the solution correct.
User Eugene Babich
by
2.9k points