2/x + 1/y = 1 1/5 dan 1/x - 3/y = - 1/10 Pleasee pakai cara.. Bsk kumpull
Matematika
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Pertanyaan
2/x + 1/y = 1 1/5 dan 1/x - 3/y = - 1/10
Pleasee pakai cara.. Bsk kumpull
Pleasee pakai cara.. Bsk kumpull
1 Jawaban
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1. Jawaban AnugerahRamot
1/x - 3/y = - ¹/₁₀
1/x = - ¹/₁₀ + 3/y
2/x + 1/y = ⁶/₅
2(- ¹/₁₀ + 3/y) + 1/y = ⁶/₅
- ²/₁₀ + 6/y + 1/y = ⁶/₅
7/y = ⁶/₅ + ²/₁₀
7/y = ⁷/₅
y = 5
Subtitusikan y = 5
1/x - ³/₅ = - ¹/₁₀
1/x = - ¹/₁₀ + ³/₅
1/x = ½
x = 2
HP : {2 , 5}