SOLUTION: Solve the following equation for A. 12AB + 7B = 5A I have the answer, but I don't know how to get to it. A = 7B/5 - 12B Thanks :)

Algebra ->  Expressions-with-variables -> SOLUTION: Solve the following equation for A. 12AB + 7B = 5A I have the answer, but I don't know how to get to it. A = 7B/5 - 12B Thanks :)      Log On


   

Question 177611: Solve the following equation for A.
12AB + 7B = 5A
I have the answer, but I don't know how to get to it.
A = 7B/5 - 12B
Thanks :)
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Add -5A to both sides, then add -7B to both sides:



Factor out the A on the left:



Multiply both sides by -1: (verification of the fact that (-1)(a - b) = (b - a) is left as an exercise for the student.)



Divide both side by (5 - 12B):