3(4 - 3s) = 30
First, divide both sides by 3.
Second, since 10 goes into 3 to get 30, simplify the fraction to 10.
Third, subtract 4 from both sides.
Fourth, subtract 10 - 4.
Fifth, divide both sides by -3.
Sixth, simplify to turn the whole fraction into a negative.
Seventh, since 2 goes into 3 to get 6, simplify the fraction to 2.
![s = -2](https://tex.z-dn.net/?f=s%20%3D%20-2)
Answer:
s = -2
8x-3x+2=
-(3+2)
-(3-2)
-1
8x-1 is the correct answer
Okay so I will explain this the best way possible, being honest with you I am not quite sure if this is 100% accurate, but I gave it my best, and I got 10
The function would be f(x) = 40x + 4.
It's plus 4 because it starts counting after the 4 kilometers already happened.
It's 40x because that's the rate of change (km/h) and the x represents the hours.
f(x) basically means y, but in functions you use f(x).
Hope this helps :)