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

The solution set is $\left\{5\right\}$.
Solve using the different properties of Algebra to find: $5x=18-3 \\5x=15 \\x =\frac{15}{3} \\x=5$ Check: $5(3)+3\stackrel{?}{=}18 \\15+3\stackrel{?}{=}18 \\18 \stackrel{\checkmark}{=}18$