Question

реши уравнения.
1) ×+(25+33)=71
2) (74+18)-×=37

Answer 1

1) х+58=71
х=71-58
х=13

2)
92-х=37
х=92-37
х=55

Answer 2

х+(25+33)=71
х+58=71
х=71-58
х=13
13+(25+33)=71
13+58=71
71=71

(74+18)-х=37
92-х=37
х=92-37
х=55
(74+18)-55=37
37=37