ну якось так ♡♡♡♡♡♡♡♡♡♡
[tex]x=-3[/tex]
[tex]0.3(x-6)=0.4(8-x)-7.1\Big.\\0.3x-1.8=3.2-0.4x-7.1\big.\\0.7x=5-7.1\Big.\\0.7x=-2.1\big.\\7x=-21\Big.\\x=-3\big.[/tex]
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ну якось так ♡♡♡♡♡♡♡♡♡♡
Ответ:
[tex]x=-3[/tex]
Пошаговое объяснение:
[tex]0.3(x-6)=0.4(8-x)-7.1\Big.\\0.3x-1.8=3.2-0.4x-7.1\big.\\0.7x=5-7.1\Big.\\0.7x=-2.1\big.\\7x=-21\Big.\\x=-3\big.[/tex]