Then y = 3x.
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When you multiply a number by a negative number, the result is negative. Therefore, x times -3 is equal to -3x. This means that you are taking the value of x and multiplying it by -3, resulting in a negative value.
It is either 2|x| - 3 or 2|x-3| depending on if the minus three is part of the absolute value.
Log (x^3) = 3 log(x) Log of x to the third power is three times log of x.
You are basically looking for an equation with an x and y value where when 4 is set as x, y would equal 7. An equation of this is: 3 + x = y when x = 4, then y = 3 + 4 = 7
(21-3)times(7+4)