x+y=7 7x+3y=37 nilai 5xy ?
Matematika
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Pertanyaan
x+y=7
7x+3y=37
nilai 5xy ?
7x+3y=37
nilai 5xy ?
1 Jawaban
-
1. Jawaban Lisayr
x + y = 7 (x3)
7x + 3y = 37 (x1)
3x + 3y = 21
7x + 3y = 37 (dikurangkan)
-4x = -16
x = -16/-4
x = 4
x + y = 7
4 + y = 7
y = 7 - 4
y = 3
5xy
= 5.4.3
= 60
Jadi 5xy hasilnya 60
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