Question

Nilai Dari 3m + n dari SPLDV 2m + 3n=19 Dan m - 2n= -8

Answer 1

2m + 3n = 19 2m - 4n = -16, shg 7n =35, n = 5 . 2m + 3n =19 2m + 15 = 19 2m = 4 m = 2 . . 3m + n = 3(2) + 5 = 6 + 5 = 11 jadi hasilnya 11 maaf kalo salah, smg bermanfaat

Answer 2

2m+3n=19 x1
m-2n=-8 x2

2m+3n=19
2m-4n=-16
-------------- -(dikurangi)
-n=3
n=-3
2m+3(-3)=19
2m-9=19
2m=10
m=5
jadi
3(5)+-3=
15-3=12