SOLUTION: I need assistant most deperately, this is asking to evaluate. 2m-5n ___________ if m=-2, n-4, and p=-1 n+3p let me know if this makes sense to you?

Algebra ->  Linear-equations -> SOLUTION: I need assistant most deperately, this is asking to evaluate. 2m-5n ___________ if m=-2, n-4, and p=-1 n+3p let me know if this makes sense to you?       Log On


   

Question 83427: I need assistant most deperately, this is asking to evaluate.
2m-5n
____________if m=-2, n-4, and p=-1
n+3p
let me know if this makes sense to you?
Found 2 solutions by Earlsdon, rapaljer:
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Evaluate:
%282m-5n%29%2F%28n%2B3p%29 if m = -2, n = -4, and p = -1
Making the appropriate substitutions, we get:
%282%28-2%29-5%28-4%29%29%2F%28-4%2B3%28-1%29%29 Simplifying this gives:
%28-4-%28-20%29%29%2F%28-4-3%29
%28-4%2B20%29%2F%28-7%29
-16%2F7

Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
+%282m-5n%29%2F%28n%2B3p%29+ where if m=-2, n-4, and p=-1
It's not clear to me what the value of n is. Did you mean to make it n=4 or n=-4??
How does that Glade commercial go? "Plug it in, plug it in!!"

If you meant n=-4, then this is what you do.
+%282m-5n%29%2F%28n%2B3p%29+
+%282%28-2%29-5%28-4%29%29%2F%28%28-4%29%2B3%28-1%29%29+
%28-4%2B20%29%2F%28-4-3%29+
16%2F-7=+-%2816%2F7%29+


If you meant n=4, then this is what you do.
+%282m-5n%29%2F%28n%2B3p%29+
+%282%28-2%29-5%284%29%29%2F%28%284%29%2B3%28-1%29%29+
%28-4-20%29%2F%284-3%29+
-24%2F1=+-24+

R^2 at SCC