Answer:
![\Large \boxed{Y=5}](https://tex.z-dn.net/?f=%5CLarge%20%5Cboxed%7BY%3D5%7D)
Step-by-step explanation:
![\textnormal{First, divide by 90 from both sides of the equation.}](https://tex.z-dn.net/?f=%5Ctextnormal%7BFirst%2C%20divide%20by%2090%20from%20both%20sides%20of%20the%20equation.%7D)
![\displaystyle \frac{90y}{90}=\frac{450}{90}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cfrac%7B90y%7D%7B90%7D%3D%5Cfrac%7B450%7D%7B90%7D)
![\textnormal{Solve to find the answer.}](https://tex.z-dn.net/?f=%5Ctextnormal%7BSolve%20to%20find%20the%20answer.%7D)
![\displaystyle 450\div90=5](https://tex.z-dn.net/?f=%5Cdisplaystyle%20450%5Cdiv90%3D5)
, which is our answer.
Hope this helps!
Answer:
no
Step-by-step explanation:
7x+5y=15
(x,y)
(4,3)
put in 4 for x and 3 for y
7(4)+5(3)=15
43=15
This equation is impossible
Hope that helps :0
Answer:
8c
Step-by-step explanation:
To find the sum<span> of a </span>positive<span> and a </span>negative integer<span>, take the </span>absolute value<span> of each </span>integer<span> and then subtract these </span>values<span>. The result takes the sign of the </span>integer<span> with the larger </span>absolute value<span>. The </span>sum<span> of any </span>integer<span> and its opposite is equal to zero.</span>