(39+X)-84=78 Решите пример

Question

(39+X)-84=78 Решите пример

Answer 1

(39+X)=78+84
(39+X)=162
X=162-39
X=123

Answer 2

(39+х) - 84 = 78
39 + х - 84 = 78
х = 78 + 84 - 39
х = 123

Comments

Спасибо

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