Pre-Algebra: Chapter 3, Lesson 6
One step inequalities
We solve one step inequalities just like we do for equalities. Just substitute the <, ≤, ≥ or > sign with an equal sign. Solve the problem with the equal sign and once you have the solution, change the equal sign to the correct inequality symbol.
Remember, when we graph points on the number line, we use a CLOSED circle for ≥ or ≤ problems and an OPEN circle when we have < or > inequalities.
Algebra: Chapter 3, Lessons 8 and 9
Absolute Value and Proportions and Ratios
We worked through the absolute value stuff yesterday. For proportions (or what I call ‘ratios’), you can multiply OR SWAP the diagonal terms in the equation to suit your needs. Multiplying across the diagonal can be less work to arrive at for your solution.