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Diketahui persamaan 2 x + 3 y = 6 dan 4 x + y = 7 . Nilai 2 x + y adalah .…

Diketahui persamaan . Nilai  adalah .…

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N. Mustikowati

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

Jawaban terverifikasi

Pembahasan

Menggunakan metode eliminasi Mencari nilai y

Menggunakan metode eliminasi

Mencari nilai y 

table row cell size 14px 2 size 14px x size 14px plus size 14px 3 size 14px y size 14px equals size 14px 6 end cell row cell size 14px 4 size 14px x size 14px plus size 14px y size 14px space size 14px space size 14px equals size 14px 7 end cell end table open vertical bar table row cell size 14px cross times size 14px 2 end cell row cell size 14px cross times size 14px 1 end cell end table close open vertical bar table attributes rowspacing default rowalign baseline center end attributes row cell size 14px space size 14px space size 14px space size 14px space size 14px space size 14px 4 size 14px x size 14px plus size 14px 6 size 14px y size 14px equals size 14px 12 size 14px space size 14px space size 14px space size 14px space end cell row cell size 14px space size 14px space size 14px space size 14px space bottom enclose size 14px 4 size 14px x size 14px plus size 14px space size 14px space size 14px y size 14px equals size 14px space size 14px space size 14px 7 end enclose size 14px space size 14px minus end cell end table close size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px space size 14px 5 size 14px y size 14px equals size 14px 5 size 14px space size 14px left right arrow size 14px y size 14px equals size 14px 1 size 14px Mencari size 14px space size 14px nilai size 14px space size 14px x 4 x plus y equals 7 4 x plus 1 equals 7 space space space space space space 4 x equals 6 space space space space space space space space x equals 6 over 4 space space space space space space space space x equals 3 over 2  size 14px Maka size 14px comma size 14px 2 size 14px x size 14px plus size 14px y size 14px equals size 14px 2 size 14px. open parentheses size 14px 3 over size 14px 2 close parentheses size 14px plus size 14px 1 size 14px equals size 14px 4

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Perhatikan grafik berikut! Himpunan penyelesaian sistem persamaan linear 5 x + 5 y = 25 dan 2 x − 4 y = − 8 adalah .…

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