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Ricoca
@Ricoca
June 2022
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x+(x+3)+(x+6)=30
решите уравнение пожалуйста!!!
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blabe
Раскрываем скобки и получаем:
х + х + 3 + х + 6 = 30
3х + 9 = 30
3х = 30 - 9
3х = 21
х = 21 : 3
х = 7
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Answers & Comments
х + х + 3 + х + 6 = 30
3х + 9 = 30
3х = 30 - 9
3х = 21
х = 21 : 3
х = 7