Step-by-step explanation:
3x-21+20=12+2x-6
3x-1= 6+2x
3x-2x=6+1
x=7
Answer:
20÷[18-{20-3(4)}]
120÷[18-[20-12]]
120÷[18-8]]
120÷10
12
Step-by-step explanation:
Answer:
5,376 m³
Step-by-step explanation:
cube - 16x16x16=4096
pyramid = 16x16x15/3=1280
4096+1280=5376
Commutative property of addition