The unknown number was found from the equation to be -30.
Equation
An equation is an expression used to show the relationship between two or more variables and numbers.
Let x represent the unknown number. Two thirds of a number is negative Twenty, hence:
(2/3)x = -20
Multiply both sides of the equation by 3/2, hence:
(2/3)x * 3/2 = -20 * 3/2
x = -30
The unknown number was found from the equation to be -30.
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