Download presentation

Presentation is loading. Please wait.

1
**Solving Two-Step Equations**

2
**What is a Two-Step Equation?**

An equation written in the form Ax + B = C

3
**Examples of Two-Step Equations**

y/4 + 3 = 12 5n + 4 = 6 n/2 – 6 = 4

4
**Steps for Solving Two-Step Equations**

Solve for any Addition or Subtraction on the variable side of equation by “undoing” the operation from both sides of the equation. Solve any Multiplication or Division from variable side of equation by “undoing” the operation from both sides of the equation.

5
Opposite Operations Addition Subtraction Multiplication Division

6
Helpful Hints? Identify what operations are on the variable side. (Add, Sub, Mult, Div) “Undo” the operation by using opposite operations. Whatever you do to one side, you must do to the other side to keep equation balanced.

7
**Ex. 1: Solve 4x – 5 = 11 4x – 5 = 15 +5 +5 (Add 5 to both sides)**

4x = 20 (Simplify) (Divide both sides by 4) x = 5 (Simplify)

8
Try These Examples 2x – 5 = 17 3y + 7 = 25 5n – 2 = 38 12b + 4 = 28

9
Check your answers!!! x = 11 y = 6 n = 8 b = 2

10
Ready to Move on?

11
**Ex. 2: Solve x/3 + 4 = 9 x/3 + 4 = 9 - 4 - 4 (Subt. 4 from both sides)**

x/3 = (Simplify) (x/3) 3 = 5 3 (Mult. by 3 on both sides) x = (Simplify)

12
Try these examples! x/5 – 3 = 8 c/7 + 4 = 9 r/3 – 6 = 2 d/9 + 4 = 5

13
Check your answers!!! x = 55 c = 35 r = 24 d = 9

14
**Time to Review! Make sure your equation is in the form Ax + B = C**

Keep the equation balanced. Use opposite operations to “undo” Follow the rules: Undo Addition or Subtaction Undo Multiplication or Division

15
Independent Practice

Similar presentations

OK

Solving Two-Step Equations What IS A TWO STEP EQUATIONS? What you do to one side of the equation must also be done to the other side to keep it balanced.

Solving Two-Step Equations What IS A TWO STEP EQUATIONS? What you do to one side of the equation must also be done to the other side to keep it balanced.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on wheel balancing Ppt on solar energy car Ppt on individual taxation in india Ppt on unity in diversity dance Free ppt on brain computer interface Ppt on artificial intelligence in power station Ppt on next generation 2-stroke engine parts Ppt on central limit theorem sample Ppt on machine translation Ppt on ram and rom definition