A + B = 76 A - B = 38 A : B = ?

Persamaan Linear Dua Variabel

A + B = 76
A - B = 38
_________ _
2B = 38
B = 38/2
B = 19

A + B = 76
A + 19 = 76
A = 76 - 19
A = 57

A : B = 57 : 19 = 3

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◾ Materi : SPLDV
◾ Sub materi : SPLDV
◾ Mapel : Matematika

Jawab : Gunakan metode substitusi
A + B = 76
A = 76 - B

A - B = 38
(76 - B) -B = 38
76 - 2B = 38
2B = 38
B = 19

A = 76 - B
A = 76 - 19
A = 57

Maka, A: B = 57 : 19 = 3

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