<span> Just plug in the value of b=3 in 4b^4, then you solve it, and your answer is 324</span>
Subtract 9 from both sides of the equation
You would divide negative 3 (-3) from both sides to keep the c by itself. When you divide a positive by a negative it becomes negative.
Dividing 15 by -3 would equal -5, so c = -5
