Magic equations

Example

+
+
=
57
 
-
=
3
 
+
+
=
 
 
+
+
=
81
 
 
 
 
 
 
 
 

Solution

+
+
=
57
 
-
=
3
 
+
+
=
54
 
+
+
=
81
 
 
 
27
 
15
 
12
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Magic equations
Magic equations

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