We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byScot Rich
Modified over 6 years ago
One and Two Step Equations Using Opposite Operations
When working to get the variable isolated and all alone, use the opposites rule. Opposites Rule – to get rid of a term from either side of an equation, just do the opposite operation.
1. C + 3 = 5 Variable Mark the variable then leave it alone. Move everything away from the variable. - 3 C = 2 2. m - 3 = 5 +3 = 8 m Variable
3. P + (-12) = -5 “fix” double signs first P – 12 = -5 +12 P= 7 4. Y - (-6) = 3 Y + 6 = 3 - 6 Y= -3 “fix” double signs first
5. X + 2.2 = 9.2 - 2.2 X= 7 - 2.2 6. X – (-28) = - 48 X + 28 = - 48 - 28 X = - 76
7. 9x = 45 This reads 9 times x So use the opposite. Divide both sides by 9. 9 9 x= 5 8. - 4m = - 28 - 4 m = 7
This is a division Problem, use Multiplication to solve it. 9. - k (8) = 48 Now Divide By -1 - 1 k =- 48 10. (-5) = x 55
Let’s try a problem. 8x + 5 = 61 This problem has addition, so we need to subtract first. - 5 Whatever we do on one side, we have to do on the other. 8x 56=
Now, Step 2. 8x = 56 This problem has multiplication, so we need to divide now. Whatever we do on one side, we have to do on the other. 88 x = 7
Let’s try another problem. 3a - 8 = 4 This problem has subtraction, so we need to add first. + 8 Whatever we do on one side, we have to do on the other. 3a 12=
Now, Step 2. 3a = 12 This problem has multiplication, so we need to divide now. Whatever we do on one side, we have to do on the other. 33 a = 4
Let’s try another problem. z + 2 = 26 6 This problem has addition, so we need to subtract first. - 2 Whatever we do on one side, we have to do on the other. 24 = z6z6
Now, Step 2. This problem has division, so we need to multiply now. Whatever we do on one side, we have to do on the other. z = 144 z = 24 6 6 6
Let’s try one more problem. m - 10 = 15 5 This problem has subtraction, so we need to add first. +10 Whatever we do on one side, we have to do on the other. 25 = m5m5
Now, Step 2. This problem has division, so we need to multiply now. Whatever we do on one side, we have to do on the other. m = 125 m = 25 5 5 5
Solving 2 Step Equations
Solving Equations Algebra Tiles.
Intro To Algebra By: Carolyn Barone.
Objective The student will be able to: solve equations using multiplication and division. Designed by Skip Tyler, Varina High School.
To solve an equation is to isolate the variable.
ALGEBRA REVIEW QUESTIONS. = balance = It is important to understand that every equation is a balancing situation. Everything on the left of the equal.
ALGEBRAIC EQUATIONS. EQUATIONS AND SOLUTIONS A correct equation is like a balance scale. In order to determine if a given value for a variable is.
2-2 Solving Two-Step Equations. Goal: To isolate the variable How do you do this : Use Inverse Operation (Opposite) 1. do all Addition or Subtraction.
SWBAT solve two-step algebraic equations. Two-Step Equations are equations that require two- steps to solve. You will ADD or SUBTRACT and then.
Solving One and Two step Equations
Solving One-Step Equations 1.Addition & Subtraction Equations 2.Multiplication & Division Equations Author: Lynda Greene Copyright 2005 by Greenebox.
Solving 2-Step Variable Equations
Solving Equations Using Multiplication and Division Algebra 1 Section 3.2a.
Created by S. Koch Solving One-Step Equations.
Objective The student will be able to: solve equations using addition and subtraction.
Equation y + 5 y + 5 = 20 Expressions
Solving One-step Equations Algebraically. The goal of solving equations: -To get one x alone on one side of the equation. The rule for solving equations:
Solving Two- Step Equations Lesson 2-2. Rules to Remember When solving an equation, the goal is to get the variable by itself. Addition and Subtraction.
2-Step Equations What??? I just learned 1-step! Relax. You’ll use what you already know to solve 2-step equations.
Solving 2-Step Variable Equations. Two Step Equations Essential Question How are inverse operations used to solve two step equations? Why does order matter.
© 2021 SlidePlayer.com Inc. All rights reserved.