Solve for A D=ABC for A

$D = A B C$ for $A$

Rewrite the equation as $A B C = D$ .

$A B C = D$

Divide each term in $A B C = D$ by $B C$ and simplify.

Divide each term in $A B C = D$ by $B C$ .

$\frac{A B C}{B C} = \frac{D}{B C}$

Simplify the left side.

Cancel the common factor of $B$ .

Cancel the common factor.

$\frac{A B C}{B C} = \frac{D}{B C}$

Rewrite the expression.

$\frac{A C}{C} = \frac{D}{B C}$

Cancel the common factor of $C$ .

Cancel the common factor.

$\frac{A C}{C} = \frac{D}{B C}$

Divide $A$ by $1$ .

$A = \frac{D}{B C}$