naomi-king_60bd45a06089f
naomi-king_60bd45a06089f
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2x + (x / 2) = 20 â Passando o 2x pro outro lado, vai subtraindo â x / 2 = 20 - 2x â Passando o 2 pro outro lado, vai multiplicando â x = 2(20 - 2x) â Aplicando a distributiva â x = 40 - 4x â Passando o - 4x pro outro lado, vai posi…