Answer: 20x+12
Step-by-step explanation:
Distribute the three: 3(7x+4) will be changed to 21x+12-x
Next group like terms, -x+21x=20x
The new equation will be 20x+12
We know that
Volume of a cube is equal to
in this problem
Answer:
B. 60=(4x-20)
Step-by-step explanation:
They are the same degree so they must equal eachother
The three angles of a triangle add up to 180.
Since you know that two angles add up to 80, you know that the third angle is 100.