x + y =2 x - y=8 berapa ya
Matematika
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Pertanyaan
x + y =2
x - y=8
berapa ya
x - y=8
berapa ya
1 Jawaban
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1. Jawaban Eli3173
x + y = 2
x - y = 8
------------ +
2x = 10
x = 10/2
x = 5
x + y = 2
5 + y = 2
y = 2 - 5
y = -3