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A + B = 11000 (x3) 3A + 3B = 33000 (-)
2B = 6000
B = 3000, maka A = 8000
4A + 2B = 4(8000) + 2(3000)
= 32000 + 6000
= 38000.................opsi C
3A+5(3.000)=39.000
3A=24.000 (3A+5B=39.000)1-(1A+1B=11.000)3 A=8.000
2B=6.000 jadi,4A+2B=
B=3.000 4(8.000)+2(3.000)=38.000