" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x+10y=4,6/×(-4) x+10y=4,6/×(-3)
4x+6y=4,8 20x+30y=24
-4x-40y=-19,2 -3x-30y=-13,8
-36y=-14,4/:(-36) 17x=10,2/:17
y=0.40 x=0.60
jedna gumka kosztuje 0.40zł,a jedna spinka kosztuje 0.60zł