0,7b=1, 8/19x=8/19, 12/5y=12/5. Помогите пожалуйста
0,7b = 1 b = 1 : 0,7 b = 1 : 7/10 b = 10/7 b = 1целая 3/7 -------------------------------------- 8/19х = 8/19 х = 8/19 : 8/19 х = 1 ----------------------------- 12/5у = 12/5 у = 12/5 : 12/5 у = 1
0,7б=1 7б=10 б=10/7 б=1 3/7 8/19х=8/19 8*19=8*19х 19=19х х=19/19 х=1 12/5у=12/5 12*5=5у*12 5=5у у=5/5 у=1