Question

Find the missing variable in the diagrams below.

Answer 1

x=11 1/3 or 34/3

Explanation:

First you have to know that the angles add up to 180 degrees so we make and equation: x+9+2x+5+3x-2=180.

Then we simplify: 6x+12=180

subtract 12 on both sides: 6x=68

Then you divide both sides by 6: x=11 1/3

this can also be answered as 34/3