Question

7-6( C-1)+3(3-4 C)=7+(7 C-4)

Answer 1

7-6(c-1)+3(3-4c)=7+(7c-4)
7-6c+6+9-12c=7c+3
-6c+22=7c+3
22-3=7c+6c
19=13c
19/13=c
c=19/13