Answer:
x=2
Step-by-step explanation:
0=-2x+4
add -2x on both sides
2x=4
divide by 2
x=2
Answer:
The number is 3.
Step-by-step explanation:
To find : A number which decreased by 12 equals 3 times it’s opposite ?
Solution :
Let the number be 'x'.
It's opposite is '-x'.
A number which decreased by 12 equals 3 times it’s opposite
i.e. ![x - 12 = 3(-x)](https://tex.z-dn.net/?f=x%20-%2012%20%3D%203%28-x%29)
Solving the equation,
![x-12=-3x](https://tex.z-dn.net/?f=x-12%3D-3x)
![x+3x=12](https://tex.z-dn.net/?f=x%2B3x%3D12)
![4x=12](https://tex.z-dn.net/?f=4x%3D12)
![x=\frac{12}{4}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B12%7D%7B4%7D)
![x=3](https://tex.z-dn.net/?f=x%3D3)
Therefore, the number is 3.
Hello from MrBillDoesMath!
Answer:
270 in^2
Discussion:
Area of rectangular floor = length * width
= 15 * 18
= 270
Thank you,
MrB
Volume is length x width x height.
A cube has the same length, width and height.
The volume of the cube is 2 x 2 x 2 = 8cm
Answer: 8 cm
Happy to help!