Ответ:
1)9+x=5
×=5-9
x=-4
9+(-4)=5
2)-33-y=-19
-y=-19+33
-y=14
y=-14
-33-(-14)=-19
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Ответ:
1)9+x=5
×=5-9
x=-4
9+(-4)=5
2)-33-y=-19
-y=-19+33
-y=14
y=-14
-33-(-14)=-19