6x+3x=27 как решить уравнение
6х+3х=279х=27х=27:9=3х=3
6х+3х=27
9х=27
х=27:9
х=3
проверка
6*3+3*3=18+9=27
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Verified answer
6х+3х=27
9х=27
х=27:9=3
х=3
Verified answer
6х+3х=27
9х=27
х=27:9
х=3
проверка
6*3+3*3=18+9=27