-3 (-5) - 3y = -6
15 - 3y = -6
-3y = -6 + (-15)
-3y = -21
y = -21 / -3
y = 7
The value of y is 7.
40 it's the same angle as angle A rotation doesn't change anything
If you just type that exact equation into a calculator it gives you the same answer as well
