3.) 7x-2y= 6 dan 4x + 4y = -3​

Jawaban:Metode Eliminasi :7x−2y=64x+4y=−3=2×(7x−2y)=2×6 =14x−4y=12=(14x−4y)+(4x+4y) = 12+(−3)=18x=9x = 9/18x = 1/2Metode Substitusi :7x−2y = 67(1/2) - 2y = 67/2 - 2y = 6-2y = 6 - 7/2-2y = 12/2 - 7/2-2y = 5/2y = 5/2 : (-2)y = 5/2 x (- 1/2)y = - 5/4x = 1/2y = - 5/4Penjelasan:

Answered by AldiKhair | 2025-08-10