Nilai × yang memenuhi SPLDV berikut ini,adalah 3× + 2y = 10, 9× – 7y =43​

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Nilai × yang memenuhi SPLDV berikut ini,adalah 3× + 2y = 10, 9× – 7y =43​

Jawaban:

4

Penjelasan:

3x +2y = 10 | x3

9x – 7y = 43 | x1

9x + 6y = 30

9x – 7y = 43 – (eliminasi)

13y = -13

y = -13/13

y = -1 (subtitusikan ke pers 1)

3x + 2(-1)= 10

3x + (-2) = 10

3x = 10 + 2

3x = 12

x = 12/3

x = 4

maap kalo salah