Răspuns :
a)x:(-5)=4<=>x=4×(-5)<=>x=-20
b)x:(-3)=5<=>x=5×(-3)<=>x=-15
c)x:(-7)=2<=>x=2×(-7)<=>x=-14
d)x:(-4)=7<=>x=7×(-4)<=>x=-24
e)x:(-8)=-5<=>x=-5×(-8)=x=40
f)x:(-7)=-4<=>x=-4×(-7)<=>x=28
g)x:(-4)=-9<=>x=-9×(-4)<=>x=36
h)x:(-9)=-3<=>x=-3×(-9)<=>x=27
b)x:(-3)=5<=>x=5×(-3)<=>x=-15
c)x:(-7)=2<=>x=2×(-7)<=>x=-14
d)x:(-4)=7<=>x=7×(-4)<=>x=-24
e)x:(-8)=-5<=>x=-5×(-8)=x=40
f)x:(-7)=-4<=>x=-4×(-7)<=>x=28
g)x:(-4)=-9<=>x=-9×(-4)<=>x=36
h)x:(-9)=-3<=>x=-3×(-9)<=>x=27