Answer:
d would be the answer
Step-by-step explanation:
i took the test
Answer:
![\sf\longmapsto \: x = 10](https://tex.z-dn.net/?f=%5Csf%5Clongmapsto%20%5C%3A%20x%20%3D%2010)
Step-by-step explanation:
Subtract 7 from both sides:
7−5x−7=−43−7
Simplify:
−5x=−50
Divide both sides by −5:
![\sf\longmapsto \: \frac{ - 5x}{ - 5} = \frac{ - 50}{5}](https://tex.z-dn.net/?f=%5Csf%5Clongmapsto%20%5C%3A%20%20%5Cfrac%7B%20-%205x%7D%7B%20-%205%7D%20%20%3D%20%20%5Cfrac%7B%20-%2050%7D%7B5%7D%20)
![\sf\longmapsto \: x = 10](https://tex.z-dn.net/?f=%5Csf%5Clongmapsto%20%5C%3A%20x%20%3D%2010)
![\boxed{\sf Answered \: By\: Subhash}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Csf%20Answered%20%5C%3A%20By%5C%3A%20Subhash%7D%20)
![\boxed{\sf Answered \: By\: Subhash}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Csf%20Answered%20%5C%3A%20By%5C%3A%20Subhash%7D%20)
![\boxed{\sf Good\: luck \: for \: your \:assignment}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Csf%20Good%5C%3A%20luck%20%5C%3A%20for%20%5C%3A%20your%20%5C%3Aassignment%7D%20)
Answer:
![x^2+18=-9x : x = -3, x = -6](https://tex.z-dn.net/?f=x%5E2%2B18%3D-9x%20%3A%20x%20%3D%20-3%2C%20x%20%3D%20-6)
Step-by-step explanation:
![x^2+18=-9x](https://tex.z-dn.net/?f=x%5E2%2B18%3D-9x)
Add 9x to both sides:
![x^2+18+9x=-9x+9x](https://tex.z-dn.net/?f=x%5E2%2B18%2B9x%3D-9x%2B9x)
Simplify:
![x^2+9x+18=0](https://tex.z-dn.net/?f=x%5E2%2B9x%2B18%3D0)
Solve with the quadratic formula:
For a quadratic equation of the form
the solutions are:
![x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}](https://tex.z-dn.net/?f=x_%7B1%2C%5C%3A2%7D%3D%5Cfrac%7B-b%5Cpm%20%5Csqrt%7Bb%5E2-4ac%7D%7D%7B2a%7D)
For ![a=1,\:b=9,\:c=18:\quad x_{1,\:2}=\frac{-9\pm \sqrt{9^2-4\cdot \:1\cdot \:18}}{2\cdot \:1}](https://tex.z-dn.net/?f=a%3D1%2C%5C%3Ab%3D9%2C%5C%3Ac%3D18%3A%5Cquad%20x_%7B1%2C%5C%3A2%7D%3D%5Cfrac%7B-9%5Cpm%20%5Csqrt%7B9%5E2-4%5Ccdot%20%5C%3A1%5Ccdot%20%5C%3A18%7D%7D%7B2%5Ccdot%20%5C%3A1%7D)
![x =\frac{-9 + \sqrt{9^2-4\cdot \:1\cdot \:18}}{2\cdot \:1} : -3](https://tex.z-dn.net/?f=x%20%3D%5Cfrac%7B-9%20%2B%20%5Csqrt%7B9%5E2-4%5Ccdot%20%5C%3A1%5Ccdot%20%5C%3A18%7D%7D%7B2%5Ccdot%20%5C%3A1%7D%20%3A%20-3)
![x =\frac{-9 - \sqrt{9^2-4\cdot \:1\cdot \:18}}{2\cdot \:1} : -6](https://tex.z-dn.net/?f=x%20%3D%5Cfrac%7B-9%20-%20%5Csqrt%7B9%5E2-4%5Ccdot%20%5C%3A1%5Ccdot%20%5C%3A18%7D%7D%7B2%5Ccdot%20%5C%3A1%7D%20%3A%20-6)
The solution to the quadratic equation are:
![x=-3,\:x=-6](https://tex.z-dn.net/?f=x%3D-3%2C%5C%3Ax%3D-6)
Hope I helped. If so, may I get brainliest and a thanks?
Thank you, have a good day!
The answer is y=(1/2)x -5
You are given the slope and a core donate pair so you plug them in to the equation. 2=x. -4=y. And (1/2)= m
Then work out like a one step equation
Answer:
i don't know the answer lol
Step-by-step explanation: