Question

ex 1. Rezolvati ecuatiile > a) 2x=-7,,, b) (x+2): 2=4

ex2. Scrieti doua perechi de numere intregi care sunt solutii ale ecuatiei x-3y=-4 . Am nev urgent de rezultat .

Answer 1

1)
a)2x=-7echivalent x=-7/2echivalent x=-3intreg si  1/2
b)(x+2)/2=4echivalent x+2=4*2echivalent x+2=8chivalent x=8-2echivalent x=6