05Jan

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

Levirina Математика 1 12

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

Posted by Levirina | Posted at Jan 05, 2014 | Categories: Математика

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dima5titov
dima5titov

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

Jan 05, 2014 06:47

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