45 + 4 makes 49 if that counts
use s=r0
but first convert 360 degree to radian
you will get 6.284 radian
then you substitute and get the answer!
12= r (6.284)
r= 1.91 cm
This is a simply problem. Just divide both sides the coefficient of x. Which is -2.
And the answer will be x = -4
