Решите уравнение : (20х+121)*18:402=9

Question

Решите уравнение : (20х+121)*18:402=9

Comments

ответ 4

Answer 1

(20х+121)*18:402=9
(20х+121)*18=402*9
(20х+121)*18=3618
20х+121=3618:18
20х+121=201
20х=-201-121
20х=80
х=80:20
х=4
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