Question

X-2=4 dan x+y=1, selesaikan dengan metode subsitusi dan eliminasi (bukan gabung)

Answer 1

X - 2y = 4
x + y = 1

-3y = 3
y = -1

x - 2y = 4
-2x - 2y = -2
-x = 5
x = -5

(-1) + y = 1
x = 2

Answer 2

Subsitusi #

x - 2 = 4 => x = 6

x + y = 1
6 + y = 1
y = -5

eliminasi #
x - 2 = 4 => x = 6

x+ y = 1
x      = 6 _
     y = -5