Jawaban:
x = 4 dan y = -6 jadi x - 4y = 28
Penjelasan dengan langkah-langkah:
Diketahui:
1/4 x - 2/3 y = 5
1/2 x + 2/3 y = -2
langsung kita eliminasi didapatkan
3/4 x = 3
jadi x = 3. 4/3 = 4
1/4 . 4 - 2/3 y = 5
- 2/3 y = 5 - 1
- 2/3 y = 4
y = 4 . -3/2
y = -6
Jadi x - 4y = 4 - 4(-6) = 4 + 24 = 28.
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Verified answer
Jawaban:
x = 4 dan y = -6 jadi x - 4y = 28
Penjelasan dengan langkah-langkah:
Diketahui:
1/4 x - 2/3 y = 5
1/2 x + 2/3 y = -2
langsung kita eliminasi didapatkan
3/4 x = 3
jadi x = 3. 4/3 = 4
1/4 . 4 - 2/3 y = 5
- 2/3 y = 5 - 1
- 2/3 y = 4
y = 4 . -3/2
y = -6
Jadi x - 4y = 4 - 4(-6) = 4 + 24 = 28.