Question

ajuda
5-x-20=5x-10-7x

Answer 1

5-x-20=5x-10-7x 5+ 20 = 5 + 10 + 7 25=22 47x ao cubo

Answer 2

Olá

5 - x - 20 = 5x - 10 - 7x

- x - 5x + 7x = - 10 + 20 - 5

x = 5

Resposta: x = 5

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