Answer:
4x+3
How: -2x - (-6x) = 4
3 cannot be added there you go
Use distributive property a(b + c) = ab + ac.

Answer:
(2, 12)
Step-by-step explanation:
You do it by adding
2 and 0.
4 and 8.
To solve for the other leg, you need to use Pythagorean theory.
The theory states that C^2 = A^2 + B^2
In your case, you have to solve for B.
C = 40 (hypotenuse) A = 24 (leg 1)
The formula rewritten for B is

Now, you can solve.

Therefore, B = 32.
So the second leg is 32 feet.
First you gotta change it to a fraction, which would be 6/10 because it's in the tenths place. Now simplify it, which would be 3/5.