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What is the number that represents the variable in-7 x greater than or equal to 18?
The number that represents the variable in-7 x greater than or equal to 18 can be a lot of numbers . In -7x x is the variable and its minimum value to make it greater than 18 is -3 . -7 * -3 = 21 which is greater than 18.
A letter in place of a numeral?
A variable is a letter that acts as a number. For example, x is the most common variable. You might see an equation y = 2x + 3 . The variables in this are x and y.
What describes a fraction that has a variable or variable expression in its numerator its denominator or both?
There is no specific name. If the numerator and denominator are polynomials in the variable then the question describes an algebraic fraction. But there is no reason at all to assume that they are polynomials. There is no specific phrase that describes sin(x)/x, for example.
What are the x numbers for after the numbers?
The "x" or "y" or abcdefg or any letter after a number is called a variable, and can be used to represent any number.
Write the phrase as a variable expression the product of 9 and a number?
The expression is 9*x.
