So the sides ML and MN are exactly the same. Your equation would look something like this...
3x = x + 10
You first subtract x from both sides to isolate the variable.
2x = 10
Divide 2 from both sides.
x = 5
5 is the length of MN.
I hope this helps love! :)
For this case we have that by definition, the volume of a rectangular prism is given by:

Where:
It is the area of the base
h: It's the height
According to the data we have:


Then:

Thus, the volume is:

Answer:

Is there supposed to be a picture or is this just random
3(4x-5)+4(2x+6)
Distribute.
12x-15+8x+24
12x+8x= 20x
24-15= 9
20x+9 <---- simplified expression
I hope this helps!
~kaikers