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2014-08-16T13:29:42+03:00
8-18 :1= (1-27) *x

8-18= -26x

-10=-26x

x= 10/26= 5/13

(274 -x:6):31=2

274-x:6=2*31

-x:6= 62 -274

-x:6= -212

x=212*6

x=1272
3 4 3
2014-08-16T13:49:06+03:00
8-18 :1= (1-27) *x
8-18= -26x
-10=-26x
x= 10/26= 5/13
(274 -x:6):31=2
274-x:6=2*31
-x:6= 62 -274
-x:6= -212
x=212*6
x=1272