5. Tentukan selesaian dari sistem persamaan berikut 2x – y = 0 3x – 2y = -3
Jawaban Ayo Kita Berlatih 5.4 Halaman 228 MTK Kelas 8 (Sistem Persamaan Linear Dua Variabel )
Ayo Kita Berlatih 5.4
Halaman 228, 229
A. Soal Pilihan Ganda (PG) dan B. Soal Uraian
Bab 5 (Relasi dan Fungsi)
Matematika (MTK)
Kelas 8 / VII SMP/MTS
Semester 1 K13
Jawaban Ayo Kita Berlatih 5.4 Matematika Kelas 8 Halaman 228 (Sistem Persamaan Linear Dua Variabel )
Jawaban Ayo Kita Berlatih 5.4 Matematika Halaman 228, 229 Kelas 8 (Sistem Persamaan Linear Dua Variabel )
Jawaban Esai Ayo Kita Berlatih 5.4 Halaman 228 MTK Kelas 8 (Sistem Persamaan Linear Dua Variabel )
a. 2x – y = 0– y = 0 – 2xy = 2x3x – 2y = -33x – 2 (2x) = -33x – 4x = -3-x = -3x = 3y = 2x = 2 x 3 = 6b. -2x + 3y = 7 (x5)5x + 8y = -2 (x2)-10x + 15y = 3510x + 16y = -4——————— +31y = 31y = 1-2x + 3y = 7-2x + 3 x 1 = 7-2x + 3 = 7-2x = 7-3-2x = 4x = -2c. 3x + 3 = 3y –> 3x – 3y = -3 (x2)2x – 6y = 2 (x1)6x – 6y = -62x – 6y = 2————— –4x = -8x = -22x – 6y = 22 x -2 – 6y = 2-4 – 6y = 2– 6y = 2 + 4-6y = 6y = -1d. 5x = 4y + 8 –> 5x – 4y = 8 (x3)3y = 3x – 3 –> 3x – 3y = 3 (x4)15x – 12y = 2412x – 12y = 12——————- –3x = 12x = 45x = 4y + 85 x 4 = 4y + 820 – 8 = 4y12 = 4yy = 3