2×-6y=-183×-4y=-12metode campuran eliminasi dan subtitusi​

Penyelesaian[tex]2x - 6y = -18[/tex][tex]3x - 4y = -12[/tex][tex]2x - 6y = -18 \quad \div 2[/tex][tex]x - 3y = -9 \quad x = 3y - 9[/tex][tex]3x - 4y = -12[/tex][tex]3(3y - 9) - 4y = -12[/tex][tex]9y - 27 - 4y = -12[/tex][tex]5y - 27 = -12[/tex][tex]5y = 15[/tex][tex]y = 3[/tex][tex]x = 3(3) - 9[/tex][tex]x = 9 - 9 = 0[/tex][tex]x = 0, y = 3[/tex]

Answered by vinganzbeut | 2025-08-20

Penjelasan dengan langkah-langkah:2x - 6y = - 18 (×3)3x - 4y = - 12 (×2)6x - 18y = - 546x - 8y = - 24 _ - 10y = - 30y = -30/(-10)y = 32x - 6(3) = - 182x - 18 = - 182x = 18 - 182x = 0x = 0/2 = 0HP = {x, y} = {0, 3}

Answered by arnymatematika | 2025-08-20