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quiel
@quiel
March 2022
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um numero somado a seu dobroe igual a 21
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MoisésPaulo
Verified answer
X+2X=21
3X=21
X=7
apenas substituindo os dados
0 votes
Thanks 1
paulomatias14
Verified answer
x +2x = 21
3x = 21
x = 21
______
3
x = 7
0 votes
Thanks 2
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Lista de comentários
Verified answer
X+2X=213X=21
X=7
apenas substituindo os dados
Verified answer
x +2x = 21
3x = 21
x = 21
______
3
x = 7