Ребята, помогите пожалуйста! Номер 455! Заранее спасибо

х + 1/9 = 1 х = 1 - 1/9 х = 9/9 - 1/9 х = 8/9 1 - х = 5/9 х = 1 - 5/9 х = 9/9 - 5/9 х = 4/9 х + 2/7 = 1 х = 1 - 2/7 х = 7/7 - 2/7 х = 5/7 1 - х = 4/7 х = 1 - 4/7 х = 7/7 - 4/7 х = 3/7

а) 1=[latex] \frac{9}{9} [/latex] [latex]x+ \frac{1}{9} = \frac{9}{9} [/latex] [latex]x= \frac{9}{9} - \frac{1}{9} [/latex] [latex]x= \frac{8}{9} [/latex] б) 1=[latex] \frac{9}{9} [/latex] [latex]\frac{9}{9} - x = \frac{5}{9} [/latex] [latex]x= \frac{9}{9} - \frac{5}{9} [/latex] [latex]x= \frac{4}{9} [/latex] в) 1=[latex] \frac{7}{7} [/latex] [latex]x+ \frac{2}{7} = \frac{7}{7} [/latex] [latex]x= \frac{7}{7} - \frac{2}{7} [/latex] [latex]x= \frac{5}{7} [/latex] г) 1=[latex] \frac{7}{7} [/latex] [latex] \frac{7}{7} - x = \frac{4}{7} [/latex] [latex]x= \frac{7}{7} - \frac{4}{7} [/latex] [latex]x= \frac{3}{7} [/latex]