Answer:
x = 24.75
Step-by-step explanation:
Angles on a straight line add up to 180°
2x - 11 + 6x - 7 = 180°
Simplify the like terms.
8x - 18 = 180°
Bring -18 to the other side in order to find x. This makes it +18.
8x = 180 + 18
8x = 198
Take 8 to the other side making it being divided upon.
x = [tex]\frac{198}{8}[/tex]
x = 24.75
