Answer:
y = 14
Step-by-step explanation:
The angle of a straight line is 180°.
So both of these angles make up 180°.
The equation used in these problem is: a + b = 180°
Substitute the values to the equation.
(11y - 12) + (2y + 10) = 180
11y - 12 + 2y + 10 = 180
11y + 2y - 12 + 10 = 180
13y - 12 + 10 = 180
13y - 2 = 180
13y = 180 + 2
13y = 182
y = 182 ÷ 13
y = 14
Hope this helps!
