3x-y=1 dan 5x+2y=1 cari nilai x+y
Matematika
mita3144
Pertanyaan
3x-y=1 dan 5x+2y=1 cari nilai x+y
1 Jawaban
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1. Jawaban Anonyme
jawab
3x - y = 1
5x - 2y = 1
2(3x - y) = 2(1)
6x - 2y = 2
5x - 2y = 1
x = 1
y = 3x -1 = 2
x + y = 3