Răspuns:
a) 20:x=-5
x=20:5
x=-4
b)28:x= -7
x=28:7
c)36:x=-6
x=36:6
x=-6
d)42:x=-6
x=42:6
x=-7
e)-16:x=-4
x=16:4
f)-18:x=-2
x=18:2
x=-9
g)-27:x=-3
x=27:3
h)-35:x=-7
x=35:7
x=-5
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