Question

3,8:(4с+3)=2:2 цел.2/19

Answer 1

1) 2:2 219=2:4019=2 *1940=1920
3,8:(4с+3)=1920
 4с+3=3,8:1920           3810:1920=3810 * 2019= 4
 4с+3=4
4с=4-3
4с=1
с=14