tentukan himpunan penyelesaian SPLDV berikut dengan metode sub 3x+2y=5 5x+y=13
Matematika
sorayakhalida3914
Pertanyaan
tentukan himpunan penyelesaian SPLDV berikut dengan metode sub 3x+2y=5 5x+y=13
2 Jawaban
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1. Jawaban onjelinn
5x+y = 13
y = 13-5x
3x + 2(13-5x) = 5
3x+26-10x = 5
-7x = -21
x = 3
3*3+2y = 5
9+2y = 5
2y = -4
y = -2
HP = {3,-2} -
2. Jawaban MuhammmadRizky
Two-Variable Linear Equation System
Mathematics
Class 8 SMP
"Substitution Method"
Settlement
5x + y = 13
y = 13 - 5x
3 x + 2y = 5
3x + 2 (13 - 5x) = 5
3x + 26 - 10x = 5
26 - 7x = 5
-7x = -21
x = 3
y = 13 - 5x
= 13 - 5 (3)
= 13 - 15
= -2
I hope this helps!!!