1.Упростить
1)2,5(4-3у)-у-2,3
2)(14-3,6в)-(12+10,4в)
2Найти значение выражения
(5 2/9 - 3 5/6)х 0,36+1,326:1,3-46,25
3.Решить уравнение
1)2х+5=2(х+1)+11
2)(13х-15)-(9+6х)=-3
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