33°
87°
х
у
y = [ ? 10
Enter

x= 60° y= 120°

Step-by-step explanation:

The sum of the sizes of a triangle's angles equals 180°

y+x = 180 ⇒ y = 180-x = 180-60= 120

y = 120

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the opposite interior angles

y = 33+87

y = 120

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^