Помогите решить уравнение (х+1/7) - 4/7 = 2/7 5/9 + ( х - 2/9) = 7/9
(х+1/7) - 4/7 = 2/7 х-3/7=2/7 (+3/7) х=2/7+3/7 х=5/7 5/9 + ( х - 2/9) = 7/9 х+3/9=7/9 (-3/9) х=7/9-3/9 х=4/9