5. Теңдеулерді шеш. 1000 - y = 45×3
231 + x = 909: 3
75: х = 50: 10
20× a – 432 = 568
х+ 579 = 309 : 3
X – 465 = 76×5
231 + x = 909: 3
75: х = 50: 10
20× a – 432 = 568
х+ 579 = 309 : 3
X – 465 = 76×5
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