Question

îmi trebuie urgent de tot ex:5, 6.dau coroana. vaaaaaa rooooooggggggg

Answer 1

a) a x b+a=6⇒ a (b+1)=6
daca a=2 atunci b=2
daca a=3 atunci b=1
daca a=1 atunci b=5
daca a=6 atunci b=0

b) axb+b=5⇒b(a+1)=5
are doua solutii
daca b=1 atunci a =4
daca b=5 atunci a=0

c) axb-a-2=2 ⇒a (b-1)=4
daca a=1 atunci b=5
daca a=4 atunci b=1
daca a=2 atunci b=3

d) a x b+b+2=5⇒ b (a+1)=3
are doua solutii
daca b =1 atunci a=2
daca b =3 atunci a=-1