7=5x-10 решите уравнения
Ответ:
Объяснение:
5x = 17 => x = \frac{17}{5} = 3\frac{2}{5}" alt="5x - 10 = 7=> 5x = 17 => x = \frac{17}{5} = 3\frac{2}{5}" align="absmiddle" class="latex-formula">
7=5x-10
5x-10=7
5x-10-7=0
5x-17=0
5x=17
x=17/5
x=3.4