<span>if they already have 200 then the "must collect" 800 to reach 1000</span>
Eliminate p :
2 (m + 2n + 2p) + (-1) (3m - n + 4p) = 2 (4) + (-1) 25
2m + 4n + 4p - 3m + n - 4p = 8 - 25
-m + 5n = -17
(m + 2n + 2p) + 2 (3m + 2n - p) = 4 + 2 (-4)
m + 2n + 2p + 6m + 4n - 2p = 4 - 8
7m + 6n = -4
Eliminate m :
7 (-m + 5n) + (7m + 6n) = 7 (-17) + (-4)
-7m + 35n + 7m + 6n = -119 - 4
41n = -123
Solve for n :
n = -3
Solve for m :
-m + 5 (-3) = -17
-m - 15 = -17
m = 2
Solve for p :
2 + 2 (-3) + 2p = 4
2 - 6 + 2p = 4
2p = 8
p = 4
Answer:
-11
Step-by-step explanation:
Plug in -2 for x
5(-2) - 1
Order of operations (or PEMDAS) tells you to multiply first giving you:
-10 - 1
-10 - 1 = -11
-2 by -3 good luck on what ever your working on
