SOLUTION: Linear System c) 4k+3h=12 4k-h=4 Thanks a lot

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Linear System c) 4k+3h=12 4k-h=4 Thanks a lot      Log On


   



Question 178031: Linear System
c) 4k+3h=12
4k-h=4

Thanks a lot

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.4k%2B3h=12
2.4k-h=4+
Subtract eq. 2 from eq. 1, this will leave an equation only in h.
%284k%2B3h%29-%284k-h%29=12-4
4k-4k%2B3h-%28-h%29=8
4h=8
highlight%28h=2%29
Use either eq. 1 or eq. 2 to solve for k.
4k-h=4
4k-2=4
4k=6
highlight%28k=6%2F4=3%2F2%29