## Introductory Algebra for College Students (7th Edition)

In order to determine whether a number is a solution to an equation, you need to substitute the variable with the number, perform the indicated operations to check whether LHS=RHS. $8\displaystyle \cdot\frac{3}{2}=12(\frac{3}{2}-\frac{1}{2})$ will involve multiplication and subtraction of fractions. Makes sense.