Jawab 1 soal aja! Carilah nilai y, dengan metode Eliminasi! y + x = -4 5y - 3x = 4

diket
y + x = -4
5y - 3x = 4

ditanya
y = ?

penyelesaian     Eliminasi x
 y +  x = -4  [x3]      3y + 3x = -12
5y - 3x = 4  [x1]      5y - 3x = 4
                              ___________+
                                         8y = -8
                                           y = -1
y = -1 ----> y + x = -4
                 -1 + x = -4
                        x = -4 + 1
                        x = -3

semoga membantu :v

Y+x =-4 ×5 =5y+5x =-20
5y-3×=4 ×1 =5y-3x =4
____________+
2x=-16
X=-8
5y+5x=-20 5y-3x=4
5y+5(-8)=-20 5y-3(-8)=4
5y - 40=-20 5y+24=4
5y =-20+40 5y =4-24
5y=20 5y=-20
Y=20/5 y= 20/5
Y= 4 y=4