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Verified answer
150 dan 300-------------------- (10)
15 dan 30
-------------------- (15)
1 dan 2
-------------------- 2
1 dan 1
FPB = 10 × 15
x = 150
8 dan 10
------------ (2)
4 dan 5
------------ 4
1 dan 5
------------ 5
1 dan 1
KPK = 2 × 4 × 5
y = 40
w = 2x + 5y - z
w + z = 2.150 + 5.40
w + z = 300 + 200
w + z = 500
2w = 4x + 3y - 4z
2w + 4z = 4.150 + 3.40
2(w + 2z) = 600 + 120
w + 2z = 360
Gunakan metode eliminasi
w + z = 500
w + 2z = 360
___________-
-z = 140
z = -140
Gunakan metode subtitusi
w + z = 500
w = 500 + 140
w = 640
Maka nilai z = -140 dan w = 640
Semoga berguna +_+