реши уравнения a-(47+33)=310+210, y+230=9×4+640, (230+640)-x=410+120. Created by bayan87. matematika-ru

реши уравнения a-(47+33)=310+210, y+230=9×4+640, (230+640)-x=410+120...

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реши уравнения a-(47+33)=310+210, y+230=9×4+640, (230+640)-x=410+120

polinkamalinka210 A-(47+33)=310+210
a-80=520
a=520+80
a=600
Ответ: 600

y+230=9×4+640
y+230=36+640
y+230=676
y=676-230
y=446
Ответ: 446

(230+640)-x=410+120
870-x=530
-x=530-870
-x=-350
x=340
Ответ: 340

40 votes Thanks 76

meetstacy

Verified answer

1) a-(47+33)=310+210

a-80=520

a=520+80

a=600

2) y+230=9×4+640

y+230=36+640

y+230=676

y=676-230

y=446

3) (230+640)-x=410+120

870-x=530

-x=530-870

-x=-340

x=340

188 votes Thanks 377

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