Question

Ajutatima exerciul 6 de la e la n.Cine ma ajuta ii dau coroana!!

Answer 1

e)x=-266/14=-19
f)4=x+1
x=4-1
x=3
g) -2x=3-1
-2x=2
x=-2/2
x=-1
x€{0,2,4,6,...}
Deci nu are soluții
h) -3x=17-1
-3x=16
x=-16/3
x=-5,33
x€Z
Deci nu are soluții
i)-4t=-20-4
-4t=-24
t=24/4
t=6 €Z
j) x-1=4/2
x-1=2
x=2+1
x=3
k) -5x+8=8
-5x=8-8
-5x=0
x=0 €Z
l) 4x-7=9
4x=9+7
4x=16
x=16/4
x=4 € Z
m) 2x+1=5
2x=5-1
2x=4
x=4/2
x=2 € Z
n) 3x+5=15
3x=10
x=10/3
x=3,3
x€N
Deci nu are soluții