Welcome back! Warm-Up… Quickwrite… Add or subtract Write down three examples of things that are different but equal to each other. Ex: 4 quarters = 1 dollar

Compare and explain your warm-up… starting with Student #3 (1 min) Add or subtract

Round Robin… starting with the student who has the shortest hair at your table (1 min) Write down three examples of things that are different but equal to each other. Ex: 4 quarters = 1 dollar

Solving linear equations

Solving linear equations An equation is a statement that two expressions are equal Ex: a = b a + c = b + c A solution is a value that makes the equation true x + 1 = 2 x = 1 is the solution Inverse operations are opposite operations that undo each other Ex: addition vs. subtraction multiplication vs. division

POE (Properties of equality) Addition POE If we add to one side of the equation, we add to the other too Ex: if a = b then a + c = b + c Subtraction POE If we subtract from one side of the equation, we subtract from the other as well Ex: if a = b then a – c = b – c

examples

practice