15-3b=63
subtract 15 from both sides
-3b=48
divide -3 from both sides
b= -16
Answer:
the answer is attached to the picture
Answer:
x= 3 +
, 3 -
Step-by-step explanation:
You use the quadratic formula to get x= 
Then you simplify and get the answers x= 3 +
, 3 -