SOLUTION: HELP! please explain to me and help w/ this problem:: x/2 + x/4 =5 and this: 25x/5 - 7x= 12

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons -> SOLUTION: HELP! please explain to me and help w/ this problem:: x/2 + x/4 =5 and this: 25x/5 - 7x= 12      Log On


   

Question 53573: HELP!
please explain to me and help w/ this problem::
x/2 + x/4 =5
and this:
25x/5 - 7x= 12
Answer by rchill(405) About Me  (Show Source):
You can put this solution on YOUR website!
For the first equation, multiply both sides by 4 and get 2x%2Bx=20 which simplifies to 3x=20. Now divide both sides by 3 and get x=20%2F3.


For the 2nd equation, multiply both sides by 5 to get 25x-35x=12 which cimplifies to -10x=12. Dividing both sides by -10 gives us x=-12%2F10 or x=-6%2F5.