Question

7*(3+c)=33+5c решение

Answer 1

7*(3+c)=33+5c
21+7c=33+5c
7c-5c=33-21
2c=12
c=12:2
c=6

Answer 2

7*(3+c)=33+5c 
21+7c=33+5c 
7с -5с = 33- 21
2с = 12
с = 6