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(58+х) - 23 = 96

58+х-23=96

х=58-23

35+х=96

х=96-35

х=61

(58+61) - 23= 96

96=96

54 - (х-19) = 35

54-х+19=35

х=54+19

73-х=35

х=73 - 35

х=38

54- (38-19)=35

35=35

(58 + х ) - 23 = 96

58 + х - 23 = 96

х = 96 -58 + 23

х = 61

(58 + 61 ) - 23 = 96

54 - (х - 19 ) = 35

54 - х + 19 = 35

- х = 35 - 54 - 19

- х = -38

х = 38

54 - ( 38 - 19 ) = 35