Question

alguem sabe? x-7=-7x

Answer 1

Oi

x - 7 = - 7x

x + 7x = 7

8x = 7

x = 7/8

Resposta: $\boxed{x = 7/8}$

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Answer 2

x - 7 = - 7x x + 7x = 7 8x = 7 x = 7/8  S = { 7/8 }