April 2020 1 55 Report
Diketahui matriks A = 2x-1 4 1 bawahnya 0 -8x 12 bawahnya lagi 4 -9 0. B = x+8y -1 0 bawahnya 9 y-9 12 bawahnya lagi 4 1 6, dan C = -21 9 2 bawahnya -9 23 12 bawahnya lagi 4 -19 -6. Jika C = A-B, nilai 5x+2y+?

Caranya nyari x dan y gimana? Saya dah muter-muter di google nggak ada.

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