## Algebra 1: Common Core (15th Edition)

z $\leq$8
You have z-12$\leq$-4 and you have to solve for x: z-12$\leq$-4 -add 12 to both sides- z$\leq$8 Check that 8 is a solution: 8-12=-4 -4=-4 When graphing, you have a closed circle because 8 is part of the solutions.