Answer: x=-5 
Step-by-step explanation: distribute the -4 first to both x and 3 
-4x-12 = 8 then add 12 to both sides to isolate x 
-4x= 20 
divide by -4 and you get x= -5 
check it 
-4(-5+3) 
-4(-5)= 20 (a negative times a negative makes a positive) 
then -4(3)= -12 
20-12= 8 
it checks out, hope this helps ^_^