Hasil pengurangan 2x-3y+5dari5x-y+8adalah

(2x-3y+5)-(5x-y+8)
2x-3y+5-5x+y-8
2x-5x-3y-8
-3x-3y-8
-3 (x+y) -8

(2x-3y+5)-(5x-y+8)
=2x-3y+5-5x+y-8
=-3x-2y-3