Salut!:)
a) x : ( - 8 ) = - 20
x = - 20 × ( - 8 )
x = 160
Verificare : 160 : ( - 8 ) = - 20 ( A )
b) y : 38 = 10
y = 10 × 38
y = 380
Verificare : 380 : 38 = 10 ( A )
c) z : ( - 19 ) = - 18
z = - 18 × ( - 19 )
z = 342
Verificare : 342 : ( - 19 ) = - 18 ( A )
Bafta!:)