Answer:
Step-by-step explanation:
make ? = y
4x-2+4(2x+y)=12x +14
distribute
4x-2+8x+4y=12x+14
group like terms
12x-2+4y=12x+14
the 12x cancels out on both sides
-2+4y=14
4y= 12
y=3
? = 3
