This can easily be solved using algebra. First, translate the meaning of the sentence into an algebraic equation.
supposing x is the number,
-15 + 3 = 2(x)
-12 = 2x
x = -6
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Fifteen is three-fourths of what number?
There are an infinite group of negative numbers where if you were to double them and add 3 that they would add up to less than -15. for instance -12*2+3= -21
Because if you multiply a negative number three times, the product will be negative.
Cheques have the amount in number and word form. $1,315.00 and one thousand, three hundred and fifteen dollars 00/100
Yes, the product of three negative numbers is always a negative number.