Answer:
c= 7 3/4
Step-by-step explanation:
-8c+7+4c=-24
We move all terms to the left:
-8c+7+4c-(-24)=0
We add all the numbers together, and all the variables
-4c+31=0
We move all terms containing c to the left, all other terms to the right
-4c=-31
c=-31/-4
c=7+3/4