Решите уравнения 23х-19х+5х=1827 5х+3х-47=6401

23х-19х+5х=1827 9х=1827 х=1827:9 х=203 ---------------------- 23*203-19*203+5*203=1827 1827=1827 5х+3х-47=6401 8х=6401+47 8х=6448 х=6448:8 х=806 --------------------- 5*806+3*806-47=6401 6401=6401