Question

B=3x+9xy solv for x

Answer 1

The answer is  B = 12 x

Answer 2

Answer:

x= $\frac{B}{3(1 + 3y)}$

or

x =  $\frac{B}{(3 + 9y)}$

Step-by-step explanation:

The given equation is B = 3x + 9xy

We have to solve for x.

B = 3x + 9xy

Let's factor the above equation.

B = 3x(1 + 3y)

We need to solve for x.

So, divide both sides by (1 + 3y), we get

$\frac{B}{(1+ 3y)} = \frac{3x(1+3y)}{(1 +3y)}$

$\frac{B}{(1 + 3y)} = 3x$

This can be written as

$3x = \frac{B}{(1 + 3y)}$

Now dividing both sides by 3, we get

x= $\frac{B}{3(1 + 3y)}$

or

x =  $\frac{B}{(3 + 9y)}$