10 What number am I? Read and choose. Before
1 I'm ofter ten, but
before thirty
49,20
4 I'm crier ten but
before twenty
2 I'm ofter eight, but
before nineteen
119
5 I'm before forty, but
cher thirty
3 I'm ofter twenty, but
before fifty.
6 I'm before thirty, ou
after twenty
78
253
484
Ответы на вопрос:
2. а) -5а+5а-40-14=26 б)-24х+12+24х-16+2х=2х-4=х-2 3. а)1,26х-1,74х=6,46-3,58 -0,48х=2,88 -х=6 х=-6 б)0,88-5,12-0.08у=4.92у-у -0,08у-4,92у+у=5,12-0,88 -4у=4,24 у=- 1,06
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