Question

Solve the equation for a. K = 4a + 9ab

Answer 1

K = 4a + 9ab
K = a (4 + 9b)
K / (4 + 9B) = a

Answer 2

ANSWER

$a = \frac{k}{(4 + 9b)}$

EXPLANATION

We have the equation,

$k = 4a + 9ab$

To solve for $a$
means, we should isolate $a$ on one side of the equation so that any other variable or constant term will also be at the other side of the equation.

Let us factor $a$
out of the right hand side of the equation to obtain,

$k = a(4 + 9b)$

We now divide both sides of the equation by

$(4 + 9b)$

Therefore;

$\Rightarrow \: \frac{k}{(4 + 9b)} = a$