To do what?
5(3x - 5) = 20
Divide both sides by 5
3x - 5 = 4
Add 5 to both sides
3x = 9
Divide both sides by 3
x = 3
y = 4x + 5
As follows:
.
Do you mean -3/(6i) = -1/(2i) = -i/2i^2) = i/2
Looks like the n'th term is given by -7 + 3(n - 1)
So the 79'th term is -7 + 3*78 = 227
Use the calculator on the home page.
Look at it like this: \(\frac{23}{25}\rightarrow \frac{23*4}{25*4}\rightarrow \frac{92}{100}\rightarrow 0.92\)
This picture should help:
Note that the angle through which the ray turns is 180° - 60° - 60° = 60°
Possibly like:
+33667 
