Jawaban:
Rp23.000,00
Penjelasan dengan langkah-langkah:
misalkan buku = a, dan bolpen = b, maka
a + b = 6.500
2a + 3b = 14.500
— eliminasi
2a + 2b = 13.000
-------------------------- –
b = 1.500
a + 1.500 = 6.500
a = 5.000
— substitusi
4a + 2b
= 4(5.000) + 2(1.500)
= 20.000 + 3.000
= 23.000
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Verified answer
Jawaban:
Rp23.000,00
Penjelasan dengan langkah-langkah:
misalkan buku = a, dan bolpen = b, maka
a + b = 6.500
2a + 3b = 14.500
— eliminasi
2a + 3b = 14.500
2a + 2b = 13.000
-------------------------- –
b = 1.500
a + b = 6.500
a + 1.500 = 6.500
a = 5.000
— substitusi
4a + 2b
= 4(5.000) + 2(1.500)
= 20.000 + 3.000
= 23.000