Matematika Sekolah Menengah Pertama 3x+4y+5z= 3 x-y+7z=12 eliminasi y​

michealcollinsulv – June 09, 2023

3x+4y+5z= 3
x-y+7z=12 eliminasi y​

Jawaban:

3x + 4y + 5z = 3 | ×1 | = 3x + 4y + 5z = 3

x - y + 7z = 12 | ×4 | = 4x - 4y + 28z = 48

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7x + 33z = 51