Respuesta :
Add 3b to both sides
[tex]ac=c-4+3b [/tex]
Subtract c from both sides
[tex]ac-c=-4+3b [/tex]
Regroup terms
[tex]ac-c=3b-4 [/tex]
Factor out the common term c
[tex]c(a-1)=3b-4 [/tex]
Divide both sides by a-1
[tex]c= \dfrac{3b-4}{a-1} [/tex]
[tex]ac=c-4+3b [/tex]
Subtract c from both sides
[tex]ac-c=-4+3b [/tex]
Regroup terms
[tex]ac-c=3b-4 [/tex]
Factor out the common term c
[tex]c(a-1)=3b-4 [/tex]
Divide both sides by a-1
[tex]c= \dfrac{3b-4}{a-1} [/tex]