Question

If ba - cd = b, which expression represents a? show your work

Answer 1

a = cd + b / b

Step-by-step explanation:

ba − cd = b

[ Step 1: Add cd to both sides ]

ab − cd + cd = b + cd

ab = cd + b

[ Step 2: Divide both sides by b ]

ab / b = cd + b / b

a = cd + b / b