Mina thinks of a number and subtracts 5/2 from it. she multiplies the result by 8. the result now obtained is 3 times the same number she had thought of. what is the number?
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Step-by-step explanation:
let the number be x
8(x-5/2) = 3x
8x - 20 =3x
5x = 20
x =4
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