Create equations and inequalities in one variable and use them to solve problems.
HSA.REI.A.1
Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method.
HSA.REI.B.3
Solve linear equations and inequalities in one variable, including equations with coefficients represented by letters.
