Question

What is the value of x?

Answer 1

x = 7 degrees

Explanation:

See attached image.

Answer 2

Explanation:

Sum of all angles of triangle = 180°

15x + 3 + 3x - 1 + 52 = 180

15x + 3x + 3 - 1 + 52= 180

Combine like terms.

18x + 54 = 180

To find the vlaue of x, we have to islolate x

Step1: Subtract 54 from both sides

18x = 180 - 54

18x = 126

Step2: Divide both sides by 18

x = 126/18

x = 7