Question

Решите уравнение:
7:с-10=4
Заранее спасибо)

Answer 1

$\displaystyle \tt 7\div c-10=4\\\displaystyle \tt 7\div c=4+10\\\displaystyle \tt 7\div c=14 \: \: \: \: | \cdot c\\\displaystyle \tt 7=14c\\\displaystyle \tt 14c=7\\\displaystyle \tt c=\frac{7}{14}\\\displaystyle \tt c=\frac{1}{2}\\\displaystyle \tt \bold{c=0,5}$