Djsylvers9p32f5z Djsylvers9p32f5z 26-02-2020 Matematică a fost răspuns Rezolvati in z ecuatiile : 3x-1=x+9 4x+9=3x+17 2x-5=-x+7 4x-12=x+6 2x+9=7+x 4-3x=x+12 -x+7=x+21 3-2x=-x+6 6+3x=-54+x 1+9x=-89-x