anonymous
  • anonymous
Solve by the substitution method.... 9m+n=45 m-5n=51
Mathematics
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Rewrite 45m+5n=225 m-5n = 51 SUbstitude 2 from 1 44m = 174 m = 174/44 n = (174/44 -51)/5
anonymous
  • anonymous
so what is the order pair then please
anonymous
  • anonymous
This does no make scence to me Ivanbaj 45m+5n=225 how did you get that?

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anonymous
  • anonymous
Problem! You need to add 1. To 2 !!! 46m = 276 m =276/46
anonymous
  • anonymous
m = 6 n= 9
anonymous
  • anonymous
(6,9)
amistre64
  • amistre64
m-5n=51 <- m = 51+5n 9(51+5n)+n=45 ; solve for n 459 + 45n +n = 45 46n = -414 n = -414/46 = -9 ............
amistre64
  • amistre64
m = 51+5n m = 51+5(-9) m = 51 - 45 m = 6
cherrilyn
  • cherrilyn
9m+n=45 m-5n=51 ..get m alone to get m=5n+51. then plug that into the first equation 9(5n+51)=45 45n+459=45 get n alone.. 45n=-414 divide both sides by 45 n=-9.2 plug n into 9m+n=45 to get m so 9m+(-9.2)=45 9m=54.2 divide both sides by 9 so you get m=6.02 and n=-9.2
cherrilyn
  • cherrilyn
oops its 9(5n+51)+n=45 45n+459+n=45 46n=-414 n=-9 plug n = -9 into 9m+(-9)=45 9m=54 m=6

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