Question

If BA + C = D, solve for A

Answer 1

To solve for A, we just have to isolate A on one side of the equation, like this:

$BA+C=D \\ (BA+C)-C=(D)-C \\ BA=D-C \\ (BA)/B=(D-C)/B \\ A= \frac{D-C}{B}$

The answer is A=(D-C)/B. 

Hope this helps!

Answer 2

BA + C = D

Subtract C on both sides

BA + C - C = D - C

BA = D - C

Divide B on both sides

$\frac{BA}{B} =\frac{D-C}{B}\\\\\ \boxed{\bf{A =\frac{D-C}{B}}}$