Автор - emragasanov2

0,4*(x-5)-0,8*(x-2)=3,4

Ответ

Автор - Varina22
0,4x- 2 -0.8x+1.6=3.4
-0.4x-0.4=3.4
-0.4x=3.4+0.4
x=3.8/(-0.4)
x=-9.5

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