(68,37-x)/6,15=8,2   60,8/(5,3х-2,15)=5

[latex](68,37-x)/6,15=8,2[/latex] [latex]68,37-x = 8,2 * 6,15[/latex] [latex]68,37-x=50,43[/latex] [latex]x = 68,37 - 50,43[/latex] [latex]x = 17,94[/latex] Проверка: [latex](68,37-17,94)/6,15=50,43 / 6,15= 8,2[/latex] -------------------------------------------------------------- [latex]60,8/(5,3x-2,15)=5[/latex] [latex]5,3x-2,15=60,8/5[/latex] [latex]5,3x-2,15=12,16[/latex] [latex]5,3x = 12,16 + 2,15[/latex] [latex]5,3x = 14,31[/latex] [latex]x = 14,31 / 5,3[/latex] [latex]x = 2,7[/latex] Проверка: [latex]60,8/(5,3 * 2,7-2,15)=60,8/(14,31 - 2,15) = 60,8/12,16 = 5[/latex] -------------------------------------------------------------------------------------------