solving simple equations

93-3x=9x+21 what is x ?

Answers
anybodyy help plz
mathsgcse
06 January 2012
yea
neeta
07 January 2012
93-3x=9x+21
phabib
09 January 2012
divided by 12 on both sides equals x=6
phabib
09 January 2012
+3x and -21 on both sides equals 72=12x
phabib
09 January 2012
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