Question

Afla numarul necunoscut :
a) x+(-3)=5
b) 7+b=-3
c) -4+y=1
d) z+(-4)=-5
e) x+0=-2

Answer 1

Răspuns:

Explicație pas cu pas:

a) x - 3 = 5 => x = 8

b) b + 7 = -3 => b = -10

c) y - 4 = 1 => y = 5

d) z - 4 = -5 => z= -1

e) x + 0 = -2 => x = -2

Answer 2

Răspuns:

a) x+(-3)=5=>x=5+3=>x=8

b) 7+b=-3=>b=-3-7=>b=-10

c) -4+y=1=>y=1+4=>y=5

d) z+(-4)=-5=>z=-5+4=>z=-1

e) x+0=-2=>z=-2-0=>z=-2