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jeruk=y
2x + 5y = 60000
4x + 3y = 64000
sama2 dkali 2, n dkali 1
4x + 10y = 120.000
4x + 3y = 64.000
7y = 56000
y = 8000
subs y= 8000 ke 2x + 5y =60.000
2x + 5(8000) = 60.000
2x + 40.000= 60.000
2x = 20.000
x = 10.000
jadi 3x + 2y = 3 (10.000) + 2(8000)= 30.000+16000=46.000
4m+3j=64.000 | x1 | 4m+3j =64.000
--------------------------------- --
7j =56.000
j =8.000
2m+5.8000 =60.000
2m+40.000 =60.000
2m =60.000-40.000
2m =20.000
m =10.000
3m+2j =3x10.000+2x8.000
=30.000+16.000
=46.000