Question

Ex.: 6 va rog mult!
Coroana+20 puncte+mă abonez

Answer 1

(a)
x*y - x*z= -36 dam factor comun pe x
x*(y-z) = -36
x* 9 = -36
x = -36 / 9
x= -4

(b)
x(y-z)= -156 aici deja am dat factor x-ul
x* -17=-156
x= -156 supra -17 la ex asta nu da nr intreg

(c)
x(y-z)= 187
x * -17 = 187
x= 187 / -17
x= -11

Answer 2

a)

x(y-z)=-156,  y-z=-17

-17x=-156

x=-156/-17    ⇒     x=156/17

b)

x(y-z)=-36,  y-z=9

9x=-36

x=-36/9   ⇒     x=-4

c)

x(y-z)=187,  y-z=-17

-17x=187

x=187/-17    ⇒     x= -11