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2014-11-08T18:56:02+02:00
(a+270:3)x5+100=600x1
(a+270:3)x5=600-100
(a+270:3)x5=500
(a+270:3)=500:5
a+270:3=100
a+90=100
a=100-90
a=10

bafta!

2014-11-08T19:11:21+02:00
[(a+270:3)*5+100]:600=1
[(a+90)*5+100]=1*600
(a+90)*5+100=600
(a+90)*5=600-100
(a+90)*5=500

a+90=500:5

a+90=100

a=100-90

a=100