Предмет: Алгебра, автор: dmit6997

помогите пожалуйста,дам 30 БАЛЛОВ

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Автор ответа: Аноним

$\displaystyle \frac{8x-3}{7}-\frac{3x+1}{10}=2\\\\ 10(8x-3)-7(3x+1)=140\\80x-30-21x-7=140\\59x-37=140\\59x=140+37\\59x=177\\x=3$

dmit6997: спасибо)

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