Question

Imi trebuie urgent!! Dau coroană!

Rezolvati, in multimea numerelor naturale, ecuatiile
a) 6-12-0
b) 31-10
d) 4-7-17:
e) 2:5+1=11:
2.1.-4,2-6,3:
c) -x+5 -0:
0.3.3-8-
1) x+3 = -2

​

Answer 1

$\it x+3=-2 \Rightarrow x=-2-3 \Rightarrow x=-5\not\in\mathbb{Z}\\ \\ -x+5=0 \Rightarrow 5=x \Rightarrow x=5\in\mathbb{N}$