(53-х)=44
х=44+53
х=97
(53-x)-39=0,5
53-x-39=0,5
x=53-39-0,5
x=13,5
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(53-х)=44
х=44+53
х=97
(53-x)-39=0,5
53-x-39=0,5
x=53-39-0,5
x=13,5