Solution:
We have been asked to find the simplified expression of

Answer:
8 is the answer
Step-by-step explanation:
I'll try to do each individual step, hopefully that'll clear it up
w= 3(2a+b)-4
w+4= 3(2a+b)
(w+4)/3 = 2a+ b
2a= ((w+4)/3) - b
a= (((w+4)/3) - b)/ 2
That comes out to 3x^2 + 4x - 6 Answer