Answer:
n=14/5
Step-by-step explanation:
4n+n-16=-2
We move all terms to the left:
4n+n-16-(-2)=0
We add all the numbers together, and all the variables
5n-14=0
We move all terms containing n to the left, all other terms to the right
5n=14
n=14/5
(x + 4) (x - 3)
a = 4
b = -3
a^2 + b^2 = ...
= 4^2 + (-3)^2
= 16 + 9
= 25
Given:
Interior angles of a polygon.
7x°, 2x°, 8x°, 60°, 10x°, 8x° and 35°.
To find:
The value of x.
Solution:
Number of sides = 7
Using sum of interior angles of a polygon formula:
Adding like terms.
Substitute n = 7.
Subtract 95° from both sides.
Divide by 35° on both sides.
x = 23
The value of x is 23.