Pomogite reshit uravnenie (X:8+18)•9=540

Question

Pomogite reshit uravnenie (X:8+18)•9=540

Answer 1

(х : 8 + 18) = 540 : 9
х : 8 + 18 = 60
х : 8 = 60 - 18
х : 8 = 42
х = 42 * 8
х = 336
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Проверка:
(336 : 8 + 18) * 9 = 540
(42 + 18)* 9 = 540
      60 * 9 = 540
         540 = 540