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DI KETAHUI SPLTV BERIKUT 3x + y + 5z = -12 ...(1) 2x-y + 4z =-17... (2) 4x + 3y + z = 23... (3)
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Putra Gema Nusa
Rockstar Teacher •GURU SMA
# Subtitusi 6 ke ( © 5x + 97 = -29 -59-147 +92 = -29 = 15 +Y-30=-12 y-15=-12 y = -12 +15 y = 3 -52 = -29 +59 -G2 = 30 Z =-6 = 0 3x + y + 5z =-12 @ 2x -y + 4z =-17 3 4x + 3y + z = 23 # #Eliminas y dr D dan @ y 0 0 3x + y + 5z =-12 @ 2x -y + 4z =-17 + 5x +92 = -29 ... # Eliminasi y dr D dan ③ 0.3|9x+3y + 15z = -36 gx 6.1| 4x + 3y + z = 23 5X + 142 -59 5X =-59-142 ...o # Subtitusi z ke © 5X = -59-142 5x = -99-14.(-6) 5X = -59 +84 :. ,y (x,y,z) =(5,3,-6) U - 5X = 25 X=5 Pahamify # Subtitusi x dan z ke 0 0 3x4 y + 5 =-12 3.5+ y + 51-6)=-12
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