SOLUTION: Solve below equation to get value of p , q and r using substitution methods p-2q + 3r= 7 2p +3q- 2r = 32 2p+3q -4r= 23

Question 604552: Solve below equation to get value of p , q and r using substitution methods
p-2q + 3r= 7
2p +3q- 2r = 32
2p+3q -4r= 23

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Solve below equation to get value of p , q and r using substitution methods
p-2q + 3r= 7
2p +3q- 2r = 32
2p+3q -4r= 23
-------------
p-2q + 3r= 7 --> p = 2q - 3r + 7
Sub for p in the 2nd & 3rd eqns.
That'll give 2 eqns in q & r
solve 1 eqn for either, sub into the other eqn.

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