15-2*(x-20)=22+x можно с РЕШЕНИЕМ. Created by FAHN. matematika-ru

15-2*(x-20)=22+x можно с РЕШЕНИЕМ...

Inf777

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15 - 2 * (х - 20) = 22 + х
15 - 2х + 40 = 22 + х
15 + 40 - 22 = х + 2х
33 = 3х
х = 33 : 3
х = 11
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15 - 2 * (11 - 20) = 22 + 11
15 - 22 + 40 = 33
33 = 33

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maslovaylia394 15-2(x-2)=22+x
15-2x+4=22+x
15+4-22=x+2x
-3=3x
x=-1 как то так

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