A computer store buys a computer system at a cost of $457.80.The selling price was set at $763, but after a year the computer di
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Answer:
<h3>x =3</h3>Step-by-step explanation:
Colete os termos semelhantes e simplifique
Divida ambos os lados da equação por 2
notice, we didn't use the negative value, valid though as it is, because in this case "a" can't be negative.