Find the Domain x/7=15/21

Problem

x/7=15/21

Solution

1. Identify the type of equation. This is a linear equation involving fractions where the variable x is in the numerator.

2. Check for restrictions on the variable. In a rational expression, the domain is restricted only if the variable appears in a denominator, which would make the expression undefined if that denominator were zero.

3. Observe the denominators. The denominators are the constants 7 and 21 Since these are non-zero constants, there are no values of x that would cause division by zero.

4. Determine the domain. Since there are no restrictions, the variable x can be any real number.

Final Answer

Domain: *(−∞,∞)

Want more problems? Check here!