Question

A triangle has sides of x + 4, 2x –3, and 12.Find the value of x if its perimeter is 22

Answer 1

x = 3

Explanation:

22-12 = 10

10- 4 = 6

6+ 3 = 9

now there's 3x's left (I added the first x and 2x)

9÷3 = 3

therefore x= 3