Question

A shelf is built on a wall, as shown below. What is the value of x?
(2x+1) + (3x-1)

Answer 1

x = 18

Explanation:

We need to find the value of x.

We know that the sum of angles of a triangle is equal to 180°. So, using this property,

2x+1+3x-1+90 = 180

2x+3x = 180-90

5x = 90

x = 18

So, the value of x is equal to 18.