Question

a)x+9= -5
b)(-5)×x=45
c)5x+7=-18
d)8x=-32
e)x÷(-3)=9

Answer 1

Răspuns:

Explicație pas cu pas:

a).  x = -5 -9 = -14

b). x = 45÷(-5) = -9

c). 5x = -18 -7 = -25 ⇒ x = -25/5 = -5

d).  x = -32÷8 = -4

e).  x = 9·(-3) = -27

Answer 2

a).x=-5-9

x=-14

b). -5x=45 | : (-5)

x=-9

c). 5x=-18-7

5x=-25 | : 5

x=-5

d).8x=-32 | : 8

8x : 8 =-32 : 8

x=-4

e). - 1/3x=9

x=-27