Sean Wei => YSITD: x+x+x=60 x=20 x+y+y=30 y=5 y-z=3 z=2 z+x*y =2+20*5 =102 #576549ac54ed786c7cdf1e2e

Sean Wei says to YSITD

x+x+x=60 x=20 x+y+y=30 y=5 y-z=3 z=2 z+x*y =2+20*5 =102

at Sat, Jun 18, 2016 9:16 PM