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× 2 = 6x + 4y = 26.000
× 3 = 6x + 15y = 64.500
------------------------------------------- -
= -11y = -38.500
= y = 3.500
3x + 2y = 13.000
= 3x + 2(3.500) = 13.000
= 3x + 7000 = 13.000
= 3x = 13.000 - 7000[
= 3x = 6000
= x = 2000
4x + 3y
= 4(2000) + 3(3.500)
= 8000 + 10.500
= Rp 18.500
Jangan lupa bintang sama terima kasihnya c: