Question

s=180n-360 for n

Answer 1

s=180n-360

Add 360 to both sides of the equation

s + 360 = 180n - 360 + 360

Simplify

s + 360 = 180*n

Symmetric Property

180 * n = s + 360

Multiply both sides by (1/180)

(1/180) * 180*n = (1/180)* ( s + 360)

n = ? @zanni Post what you get and we can compare answers. Okay?

Answer 2

n=2, sorry I got on here to try and help my daughter because its been years since I've had to do this stuff! :)

Answer 3

Assuming s=180n-360 is the equation in the text.

s=180n-360
Add 360 to both sides of the equation
s + 360 = 180n - 360 + 360
Simplify
s + 360 = 180*n
Symmetric Property
180 * n = s + 360
Multiply both sides by (1/180)
(1/180) * 180*n = (1/180)* ( s + 360)
n = (s + 360) / 180