Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
8-(3*a-4)=0
Pull out like factors :
12 - 3a = -3 • (a - 4)
Solve : -3 = 0
Solve : a-4 = 0
Add 4 to both sides of the equation :
Answer a = 4
