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  • 490:х=15+53
  • 630 + х = 248 ● 4
  • (52 - 11) - х = 18
  • (73 - х) ● 60 = 480
  • х + 285 = 36 ● 12
  • 630 + х = 248 ● 4
  • 6 ●(х+48) = 540
  • 150 + (х+40) = 75
  • 146 ●х - 163 = 423●3
  • (2960 - 2078) : х = 42
  • х – (195 + 376) = 123
  • х + 60 ● 5 = 500
  • 6 ● 7 + х = 414 : 6
  • 140 : (68 - х)=7
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