Answer:
x=4 and y=−2
Step-by-step explanation:
y=−3x+10;y=−2x+6
Step: Solve y=−3x+10for y:
Step: Substitute−3x+10foryiny=−2x+6:
y=−2x+6
−3x+10=−2x+6
−3x+10+2x=−2x+6+2x(Add 2x to both sides)
−x+10=6
−x+10+−10=6+−10(Add -10 to both sides)
−x=−4
-x/-1 = -4/-1 (Divide both sides by -1)
x=4
Step: Substitute4forxiny=−3x+10:
y=−3x+10
y=(−3)(4)+10
y=−2(Simplify both sides of the equation)
Answer:
ABC is a DEF because its in order ABCDEFGHIJKLMNOPQRSTUVWXYZ
Step-by-step explanation:
The only possible answer so you're welcome
Answer:
Step-by-step explanation:
For this case we must determine the inverse of the following function:
![f(x)=3x-2](https://tex.z-dn.net/?f=f%28x%29%3D3x-2)
Step 1:
We would write
or ![y=3x-2](https://tex.z-dn.net/?f=y%3D3x-2)
Step 2:
We clear x:
![y+2=3x](https://tex.z-dn.net/?f=y%2B2%3D3x)
![\frac{y+2}{3}=x](https://tex.z-dn.net/?f=%5Cfrac%7By%2B2%7D%7B3%7D%3Dx)
Step 3:
"x" and "y" are exchanged:
![y=\frac{x+2}{3}](https://tex.z-dn.net/?f=y%3D%5Cfrac%7Bx%2B2%7D%7B3%7D)
The inverse is:
![f^{-1}(x)=\frac{x+2}{3}](https://tex.z-dn.net/?f=f%5E%7B-1%7D%28x%29%3D%5Cfrac%7Bx%2B2%7D%7B3%7D)
Answer:
What exactly is it asking to do?
Step-by-step explanation
Answer:
![21](https://tex.z-dn.net/?f=21)
Step-by-step explanation:
Let
be that number.
![12x-216=2x-6](https://tex.z-dn.net/?f=12x-216%3D2x-6)
![12x-2x=-6+216](https://tex.z-dn.net/?f=12x-2x%3D-6%2B216)
![10x=210](https://tex.z-dn.net/?f=10x%3D210)
![10x/10=210/10](https://tex.z-dn.net/?f=10x%2F10%3D210%2F10)
![x=21](https://tex.z-dn.net/?f=x%3D21)
21 is the number.