Решите 2 уравнения!Срочно!. Created by AnimeshkaMangle. matematika-ru

Решите 2 уравнения!Срочно!...

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(3 3/4+х):1,9=2,5
3,75+х=2,5*1,9
х=4,75-3,75
х=1

(7,1-х):3,6=1 1/2
7,1-х=1,5*3,6
х=7,1-5,4
х=1,7

2 votes Thanks 1

Катя20007 1 2/4=1,75 1 1/2=1,5
(1,75+х):1,9=2,5 (7,1-х):3,6=1,5
х=7,1-(1,5*3,6)
х=7,1-5,4
х=2,5*1,9-1,75 х=1,7 (7,1-1,7):3,6=1,5
х=4,75-1,75 5,4:3,6=1,5
х=3
(1 3/4+3):1,9=2,5
1,75+3=4,75:1,9=2,5

1 votes Thanks 1

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