4m-2n=16 2m+n=8 tentukan ke eliminasi -subtitusi

Eliminasi :

4m – 2n = 16 —— x 1
2m + n = 8 —— x 2

4m – 2n = 16
4m + 2n = 16
——————— –
-4n = 0
n = – 1 / 4

substitusi :
2m + n = 8
2m + ( – 1 / 4 ) = 8
2m = 8 + ( 1 / 4 )
2m = 33 / 4
m = 33 / ( 2 x 4 )
m = 33 / 8