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3y=x-6 (persamaan 1 )
y=3x+2 (persamaan 2)
Eliminasi
3y=x-6 |x1
y=3x+2 |x3
_______
3y=x-6
3y=9x+6
_______ -
0 = -8x-12
x = -12/8 = -3/2
3y=x-6 |x3
y=3x+2 |x1
_______
9y=3x-18
y =3x+2
_______ -
8y = -20
y = -20/8 = -5/2
substitusi
3y=x-6
3(3x+2)=x-6
9x+6=x-6
8x=-12
x=-12/8 = -3/2
3y=x-6
3y=-3/2 - 6
3y = -15/2
y = -5/2