Question

помогите с проверкой

Answer 1

(с+4)/6 = (3c-2)/7

6*(3c-2)=7*(c+4)
18c-12=7c+28
18c-7c=28+12
11c=40
c=40:11
x=3 7/11
=================
(3 7/11 + 4)/6 = (3*3 7/11 -2)/7
(7 7/11)/6 =( 10 10/11 - 2)/7
(84/11) *1/6 = (8 10/11)/7
14/11 =  98/11*1/7
14/11=14/11