X - Y = 3 2x + 3y = 16 tolong di mengeliminasikan yg X nya y
Matematika
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Pertanyaan
X - Y = 3
2x + 3y = 16 tolong di mengeliminasikan yg X nya y
2x + 3y = 16 tolong di mengeliminasikan yg X nya y
2 Jawaban
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1. Jawaban ruthstephanis
x - y = 3 (×2) 2x - 2y = 6
2x + 3y = 16 (×1) 2x + 3y = 16
________________ -
-5y = -10
y = 2
2x - 2y = 6
2x - 2(2) = 6
2x - 4 = 6
2x = 10
x = 5
HP = {5 , 2} -
2. Jawaban cupid85
x - y = 3 |×2
2x + 3y = 16
maka
2x - 2y = 6
2x + 3y = 16
------------------(-)
- 5y = - 10
y = 2
x - y = 3 |×3
2x + 3y = 16
maka
3x - 3y = 9
2x + 3y = 16
------------------(+)
5x = 25
x = 5
hp = ( 5 , 2 )