Answer:
150 units
Step-by-step explanation:
2(2x)+2(x+12)=4x+2x+(x+3)
4x+2x+24=4x+2x+x+3
24-3=4x+2x+x-4x-2x
21=x
2(21)+(21)+12+2(21)+(21)+12
42+21+12+42+21+12
150
