Предмет: Русский язык, автор: poletuchaya

решить уравнение 13+8х-(10х+9)=12

Ответы

Автор ответа: kiskka15
2
13+8х-(10х+9)=12
13+8х-10х-9=12
-2х+4=12
-2х=12-4
-2х=8
-х=8/2
-х=4
х=-4
Автор ответа: agam5
3
13+8x-10x-9=12
8x-10x=12+9-13
-2x=8
x=-4
poletuchaya: спасибо
agam5: не за что
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