Y=9x-9? Y=9

2 Answers
Mar 8, 2018

#2=x#

Explanation:

Let's start by replacing the #Y# with #9#

#9=9x-9#

Add #9# to #9#

#18=9x#

Divide

#2=x#

Mar 8, 2018

#x=2#

Explanation:

#Y=9x-9#

Put #Y = 9#

#=>9=9x-9#

#=>9+9=9x#

#=>18=9x#

#=>18/9=x#

#=>cancel18^2/cancel9#

#=>2#