For 8b it would be explained like this:
28(-4) - 4(1)
-112 - 4
-116
Answer:
4 (Assuming you mean 4/(-3+5)+2)
Step-by-step explanation:
(Assuming you mean 4/(-3+5)+2)
4/(-3+5)+2
simplify within the parenthesis:
(4/2)+2
simplify 4/2
2+2
simplify 2+2
4
You just cancel the +2y and the -2y because they are the same value and different signs then solve for X that gives you -3 and then add -15 along with -6 to give you -21 (cancel the negative sign) and you'll divide 21 and 3 to give you 7 and the substitute in the original equation for x (7) to get y. Idk if the answer choices are correct though....
Answer:
One solution.
Step-by-step explanation:
We have been given an equation
. We are asked to find the number of solutions for our given equation.
Let us solve our given equation. Upon combining like terms, we will get:
![20z-12z-5=10z+8](https://tex.z-dn.net/?f=20z-12z-5%3D10z%2B8)
![8z-5=10z+8](https://tex.z-dn.net/?f=8z-5%3D10z%2B8)
![8z-10z-5=10z-10z+8](https://tex.z-dn.net/?f=8z-10z-5%3D10z-10z%2B8)
![-2z-5=8](https://tex.z-dn.net/?f=-2z-5%3D8)
![-2z-5+5=8+5](https://tex.z-dn.net/?f=-2z-5%2B5%3D8%2B5)
![-2z=13](https://tex.z-dn.net/?f=-2z%3D13)
![\frac{-2z}{-2}=\frac{13}{-2}](https://tex.z-dn.net/?f=%5Cfrac%7B-2z%7D%7B-2%7D%3D%5Cfrac%7B13%7D%7B-2%7D)
![z=-\frac{13}{2}](https://tex.z-dn.net/?f=z%3D-%5Cfrac%7B13%7D%7B2%7D)
Therefore, our given equation has only one solution.
Answer: b. segment TX = 16 m.