Check their work and/or confirm graphically, showing your work or the graph. If you find a mistake, kindly let them know.

• Replace the "variable" with "1-variable" and solve (if the original uses the variable "a", replace it with "1-a"). For example, |2a|
• Solve the new inequality. Write the solution to the new inequality in set notation and interval notation.

My problem is 22 so |a+4|22 Per rules of this equation if 320. then A=B or A=B First rule used to solve equation as follows: a+4=2 (subtract 4 from both sided} or a+4=2 [subtract 4 from both sided) a=2 a=6 Interval notation is {oo-]LJ[2,oo] Set notation is {alag or a3_>2} So far most of this topic is easy and I can remember parts from previous math courses. The issue will be differentiating with the different equation formats like set notation and interval notation