Question

CAN YOU HELP ME WITH THIS​

Answer 1

the sum of the expanded angle is 180⇒

$40+40+2x+30=180\\2x=70\\x=35$

Answer 2

Answer:

x=35

Step-by-step explanation:

Add the 2 known angles: 80°

Then subtract them from eight since a straight line is 180°: 180-80= 100

then you have the equation: 2x+30=100

2x+30=100

     -30  -30

      2x=70

       $\frac{2x}{2}$ =$\frac{70}{2}$

        x=35