Magic equations

Example

+
+
=
40
 
+
+
=
33
 
+
+
=
58
 
+
-
=
 
 
 
 
 
 
 
 
 

Solution

+
+
=
40
 
+
+
=
33
 
+
+
=
58
 
+
-
=
15
 
 
 
11
 
18
 
22
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Magic equations
Magic equations

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