TECFT.D.4.a

ESOLALM.D.4.a: solve linear equations and inequalities in one variable, including equations with coefficients represented by letters (i.e., solve multi-step linear equations with one solution, infinitely many solutions, or no solution; extend this reasoning to solve compound linear inequalities and literal equations); express solution sets to inequalities using both interval notation (e.g., (2, 10]) and set notation (e.g., { x \ 2 < x = 10})