Ответ:
19x − 12x = 3,192
7x = 3,192
x = 3,192 : 7
x = 0,456.
6x − 11,4 = 3,48
6x = 3,48 + 11,4
6x = 14,88
x = 14,88 : 6
x = 2,48.
Ответ: 1) x = 0,456; 3) x = 2,48.
19x − 12x = 3,192
7x = 3,192
x = 3,192 : 7
x = 0,456.
6x − 11,4 = 3,48
6x = 3,48 + 11,4
6x = 14,88
x = 14,88 : 6
x = 2,48.
Ответ: 1) x = 0,456; 3) x = 2,48.