2. Equations To solve an equation we always do the opposite operation on both sides. When solving a two-step equation you have to follow the order of operations backwards to find the operation you undo first. Adding- add, sum, more, increase, total, plus Subtracting- minus, difference, decrease, fewer than, less than Multiplying- times, product, of Dividing- divide, quotient, per
3. Inequalities Inequality- a math statement without an equal sign and with a >, <, >, < sign You solve an inequality the same way you solve an equation. You reverse the inequality symbol when you multiply or divide by a negative number.