Answer:
y=-x+2
x+y=2
Step-by-step explanation:
hopefully this helps :)
Hello again! So we will be using the pythagorean theorem (
![leg^2+leg^2=hypotenuse^2](https://tex.z-dn.net/?f=leg%5E2%2Bleg%5E2%3Dhypotenuse%5E2)
) to solve for the bottom leg of the triangles. After we do that, we'll subtract the value of the legs from 31, and that'll be x.
Plug in 17 and z (or any variable that isn't x) into the leg variable and 19 into the hypotenuse variable, and from there we can solve.
![17^2+z^2=19^2](https://tex.z-dn.net/?f=17%5E2%2Bz%5E2%3D19%5E2)
Solve the exponents to get
![289+z^2=361](https://tex.z-dn.net/?f=289%2Bz%5E2%3D361)
Subtract 289 on each side to get
![z^2=72](https://tex.z-dn.net/?f=z%5E2%3D72)
Lastly, square root each side of the equation and your answer should be
![z= \sqrt{72}](https://tex.z-dn.net/?f=z%3D%20%5Csqrt%7B72%7D)
(To get more accurate answers, you shouldn't round until the end of the problem)
Nextly, we will need to subtract
![\sqrt{72}](https://tex.z-dn.net/?f=%20%5Csqrt%7B72%7D)
from 31. And since there are 2 triangles, you'll need to multiply
![\sqrt{72}](https://tex.z-dn.net/?f=%20%5Csqrt%7B72%7D)
by 2.
In short, x = 14.0
First of all, you can move the +2x to the other side:
-11 = -26 - 2x
Then you can move the -26 to the other side and then simplify:
-11+26 = -2x
15 = -2x
Then you can divide both sides by 2:
7.5 = -x
Then you can flip the sides and the signs around:
x = -7.5
No, The answer is not -7, it is -7.5
Hope this helps! :)
Answer: Three plus Five equals Eight or 3= a · 5= 5a
Step-by-step explanation: