Jawab:
x + 1/2 +y + 1/4 = 5 dikali 4
2x -1/3 -y + 1/5 = 1 dikali 15
4x + 2 + 4y + 1 = 20
30x -5 -15y+ 3 = 15
4x + 4y + 3 = 20
30x -15y -2 = 15
4x + 4y = 20 - 3
30x -15y = 15 + 2
4x+4y = 17 dikali 15
30x -15y = 17 dikali 2
60x + 60y = 255
60x - 30y = 34
_____________ -
90y = 221
y = 221/90
4x + 4y = 17
4x + 4×221/90 =17
4x + 884/90 = 17
4x = 17x90/90 -884/90
4x =(1530-884)/90
4x = 646/90
x = 646/90×4
x = 656/360
x = 1 37/45
Penjelasan dengan langkah-langkah:
" Life is not a problem to be solved but a reality to be experienced! "
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Jawab:
x + 1/2 +y + 1/4 = 5 dikali 4
2x -1/3 -y + 1/5 = 1 dikali 15
4x + 2 + 4y + 1 = 20
30x -5 -15y+ 3 = 15
4x + 4y + 3 = 20
30x -15y -2 = 15
4x + 4y = 20 - 3
30x -15y = 15 + 2
4x+4y = 17 dikali 15
30x -15y = 17 dikali 2
60x + 60y = 255
60x - 30y = 34
_____________ -
90y = 221
y = 221/90
4x + 4y = 17
4x + 4×221/90 =17
4x + 884/90 = 17
4x = 17x90/90 -884/90
4x =(1530-884)/90
4x = 646/90
x = 646/90×4
x = 656/360
x = 1 37/45
Penjelasan dengan langkah-langkah: