Предмет: Математика, автор: tanylja

Решить уравнения -20-х=-5, 1+х=-7, 9-х=-9,х+10=9

Ответы

Автор ответа: Razmalin

0

-x=-5+20
-x=-15
x=15

x=-7-1
x=-8

-x=-9-9
-x=-18
x=18

x=9-10
x=-1

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