To clarify the systems of equations:
![-12x - y = 6](https://tex.z-dn.net/?f=-12x%20-%20y%20%3D%206)
![17x + y = 4](https://tex.z-dn.net/?f=17x%20%2B%20y%20%3D%204)
We already have opposite coefficients for y, so combine the two equations together:
![5x = 10](https://tex.z-dn.net/?f=5x%20%3D%2010)
Divide both sides by 5 to get x by itself:
![x = 2](https://tex.z-dn.net/?f=x%20%3D%202)
Because we now know x, we can plug it into one of the equations.
We will plug this value into the first equation:
![-12(2) - y = 6](https://tex.z-dn.net/?f=-12%282%29%20-%20y%20%3D%206)
![-24 - y = 6](https://tex.z-dn.net/?f=-24%20-%20y%20%3D%206)
Add 24 to both sides.
![-y = 30](https://tex.z-dn.net/?f=-y%20%3D%2030)
Divide both sides by -1 to get y by itself.
![y = -30](https://tex.z-dn.net/?f=y%20%3D%20-30)
Using elimination,
x = 2 and y = -30.
40% = 2 / 5 I hoped I helped :)
Answer:
40 + 4x
Step-by-step explanation:
formula for perimeter:
( length * 2 )+(width * 2)
you know that the length and width will be increased by the same number so you can call that X.
((length + x)*2) + ((width + x) * 2)
then substitute length and width
((15+x)*2) + ((5+x)*2))
you can simplify this a bit more
30 + 2x + 10 + 2x
40 +4x
Goodluck with your schoolwork/homework!
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Sorry for any wrong answers or bad explanations.
Answer
-5.9029581E20 idk if this helps
lmk if it does
Step-by-step explanation:
Answer:
Option 1
Step-by-step explanation:
x⁴ + 2x³ - 5 + 3 + 7x³ + x⁴
2x⁴ + 9x³ -2