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16-32/8+1 Given  

=16-4+1

Divide "-32/8"  
=12+1 Subtract "16-4"  
=13 Add "12+1"  
13 Solution  

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8.44 ⁢ x + 55 ⁢ y = 0 3.1 ⁢ x - 0.7 ⁢ y = - 1.1