What's the value of x​

The letter 'x' is oftenly used in algebra to mean a value that is not yet known . The letter 'x' is known as a variable. Example:- x+3=4 therefore 'x' is the variable .

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where are the options?

step-by-step explanation:

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.