Автор - marinapankeeva1

Как решить 17х-х+5х-19=170

Ответ

Автор - iy757
17x-x+5x-19=170
21x=170+19
21x=189
x=189/21
x=9

Ответ

Автор - gulerismaylova

17x - x + 5x - 19 = 170 \ 16x + 5x - 19 = 170 \ 21x = 170  + 19 \ 21x = 189 \ x =  frac{189}{21}  \ x = 9

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