Question

Find the value of X. (Triangle Angle Theorems)

Answer 1

To find this, first combine 5x and 9 + x to get 6x + 9. Then set this equal to 9x. 6x + 9 = 9x. Subtract 6x from both sides to get 9 = 3x. Divide both sides by 3 to get ==================> x = 3 <==========================