646. Решите уравнения:
1)
11
- х = 77;
15
15
3) 15
— х = 25;
64
—
.
у
и
= 14
N
1)
11
- х = 77;
15
15
3) 15
— х = 25;
64
—
.
у
и
= 14
N
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Answers & Comments
11+66=77;15-40=25;64-50=14;