Find the angle x:- x=4/5(180°-x)+36 ?

1 Answer
Jun 11, 2018

x=100

Explanation:

x=4/5(180-x)+36

Times both sides by 5
5x=4(180-x)+180

Expand the brackets
5x=720-4x+180

Move -4x to the LHS and simplify
9x=900

Divide both sides by 9
x=100