tentukan himpunan penyelesaian spldv 2y=10-3x 9x= 43+7y
Matematika
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Pertanyaan
tentukan himpunan penyelesaian spldv 2y=10-3x
9x= 43+7y
9x= 43+7y
1 Jawaban
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1. Jawaban Arkan5283
2y = 10 - 3x
2y - 10 = - 3x
- 3x - 2y = - 10
3x + 2y = 10
9x = 43 + 7y
9x - 43 = 7y
7y - 9x = - 43
- 9x + 7y = - 43
3x + 2y = 10|× 7
- 9x + 7y = - 43|× 2
21x + 14y = 70
- 18x + 14y = - 86
_____________—
39x = 156
x = 4
3x + 2y = 10
12 + 2y = 10
2y = 10 - 12
2y = - 2
y = - 1
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