6.5x+7.21=33.73 СРОЧНО
6.5x+7.21=33.736.5x=33.73-7.21 6.5x=26,52 x=26.52:6.5 x=265.2:65 x=4,08
6,5х=33,73-7,21 6,5х=26,52 х=26,52/6,5 х=4,08