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## A dump of our free Chat sessions, in case it is useful. It excludes white boards used during paid sessions.

student : 3r+9s=36 and r=8s-10
student : solve by substitution
student : i sent it
student : show step by step
tutorsd6 : 3( 8s - 10 ) + 9s = 36 ( substitute the value r = 8s - 10 )
student : next step
tutorsd6 : 24s - 30 + 9s = 36
tutorsd6 : 33s - 30 + 30 = 36 + 30 ( add 30 to both sides )
tutorsd6 : 33s = 66 ..................s = 66/33 = 2
student : omg
student : thank you so much!
student : got it thanks
tutorsd6 : r = 8 x 2 - 10 = 16 - 10 = 6
tutorsd6 : Get 1 homework problem done for 99 cents only.
tutorsd6 : Improve your grades, get 1 hour of Math coaching only \$16..
student : k
student : next problem...
student : 4x+3y=4 and 6x-6y=-1
student : by sustitution

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