The answer is for 23-24 is 23 d and for 24 it’s g
(2x+2)(10x^2 - 6x + 8) =
2x(10x^2 - 6x + 8) + 2(10x^2 - 6x + 8) =
20x^3 - 12x^2 + 16x + 20x^2 - 12x + 16 =
20x^3 + 8x^2 + 4x + 16 <==
The given linear system is:

The question is asking to solve using elimination. When eliminating, you can either eliminate x or y. In this system, y is much easier to eliminate. The y variable in both equations are 7y. To eliminate, one of them has to be negative, so multiply one of the equations by -1.
I will be multiplying the second equation by -1.

Rewrite the system:

Subtract:


Lastly, you need to leave the variable x alone. The variable is currently -6x or -6 times x. To remove it, you need to do the opposite of it, which is dividing by -6.


Now that you have the value of x, substitute it into one of the equations to find y. I will be substituting it into the first equation.

Open the parentheses and multiply:

Move 5 to the other side to leave the variable alone:

You will be subtracting since you're "removing" it by doing the opposite of it.

Lastly, divide both sides by 7 to leave y alone.



The answer is (1, 4).
Answer:
42 cm
Step-by-step explanation:
A square has 4 equal sides. To find the perimeter, add all side lengths together.
1. Set up the equation and solve
10.5 + 10.5 + 10.5 + 10.5 = 42
He will run about <span>0.00085916522 kilometers.
Hope this helped! Have a great day. :)</span>