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Learn how to solve two-step equations by isolating the variable using inverse operations. Practice problems included.
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Monday, February 7th Bell Ringer: Solve for x in all of the equations below
News and Notes Concept Quiz this week: Thursday Binder Checks: Tuesday
238 All Stars of the Week How you get it • Hard work • Good Behavior • MASTERY!!!!!! • Help classmates • Overall just raise the bar When we will give it out • Every week
Today • Objective: I CAN solve two step equations • HW: Finish the back of the sheet
Also • If you are having trouble with the HW • Go to mrobyrne.com There are video links for each day
Definitions Equation: Mathematical sentence ex: x+5=10 “x plus five equals 10” Solution of an equation: A value that makes the sentence true
Solving Two-Step Equations We need to isolate the variable To do that we work BACKWARDS undoing each operation using INVERSE operations Inverse operations means Opposite operations
Example #1 Solve for x:
Example #1 Solve for x:
Example #1 Solve for x: NOW WORK BACKWARDS!!!!
Example #1 Solve for x: NOW WORK BACKWARDS!!!!
Example #1 Solve for x: NOW WORK BACKWARDS!!!!
Example #1 CHECK!!!!!!!!!!!!! Solve for x:
Example #2 Solve for x:
Example #2 Solve for x:
Example #2 Solve for x: NOW WORK BACKWARDS!!!!
Example #2 Solve for x: NOW WORK BACKWARDS!!!!
Example #2 Solve for x: NOW WORK BACKWARDS!!!!
Example #2 CHECK!!!!!!!!!!!!! Solve for x:
Now – Check you answers Write the number you got right in the box IF: 0 - 1 right – you go to the right side of the room 2 – 3 right – you go to the center of the room All 4 right – you go to the left side of the room
You move on when • Your answers match that of 3 others people in your group
Exit Slip Solve for each variable