Народ помогите умоляю.х + 5х - 2 = 89

х + 5х - 2 = 89 6х = 89 + 2 6х = 91 х = [latex] \frac{91}{6} [/latex] = 15 [latex] \frac{1}{6} [/latex]

Решение :  [latex]x+5x-2=89 \\ x+5x=89+2 \\ 6x=89+2 \\ 6x=91 \\ x= \frac{91}{6} \\ x=15 \frac{1}{6} \\ [/latex] Проверка:  [latex]\\ 15 \frac{1}{6} +5*15 \frac{1}{6} -2=89 \\ 1)5* \frac{91}{6} = \frac{455}{6} =75 \frac{5}{6} \\ 2)15 \frac{1}{6} + 75\frac{5}{6} =90 \frac{6}{6} =90+1=91 \\ 3)91-2=89 \\ [/latex] Ответ:  [latex]\\ x=15 \frac{1}{6} [/latex]