29x-66y=21 -33x+45=34

29x- 66y= 21 -33x+45 =34 |-45 -33x= -11 | :-33 29x- 66y= 21 x= 1/3 29 razy 1/3 -66y = 21 x= 1/3 9i2/3 - 66y= 21 | -9 i 2/3 -66y= 11i 1/3 | :-66 x= 1/3 x= 1/3 y= 5i 28/198

29x-66y=21/*33 -33x+45=34/*(-29) 957x-2178y=693 957x-1305=-986 957x=693+2178y 957x-1305=-986 957x=693+2178y 693+2178y-1305=-986 957x=693+2178y 2178y=-986-693+1305 957x=693+2178y 2178y=-374/:2178 957x=693+2178y y=-0,17 957x=693-374 y=-0,17 957x=319/:957 y=-0,17 x=0,33 y=-0,17

29x-66y=21 -33x+45=34 29x=21+66y -33x+45=34 x=21/29 +66y/29 -33(21/29+66y/29)+45=34 x=21/29 +66y/29 -693/29+2178y/29=32-45 x=21/29 +66y/29 2178y/29=32-45+693/29 /*29 x=21/29 +66y/29 2178y=928-1305+693 x=21/29 +66y/29 2178y=316 x=21/29 +66y/29 y=316/2178=158/1089 x=21/29+66*158/1089/29 /*29 y=158/1089 x=22869/1089/29+10428/1089/29 y=158/1089 x=51738/1089/29 y=158/1089 x=47,5/29 y=158/1089