Solving One-Step Equations
 GOAL: I can solve one-step equations with one variable.

 Learning Standards Common Core Standard: 7.EE.1

 Resources RED BOOK Reference: Pages: 128 ─ 132 Pages: 135 ─ 138 Practice on page 132, #15-37 odds and on page 138, #15-29 odds. BLACK BOOK Reference: Pages: 81 ─ 85 Practice on page 85, #27-49 odds.

 Practices (with answers) Solving 1-Step Problems (ver. 1)  Solving 1-Step Problems (ver. 2)  Solving 1-Step Problems (ver. 3)

 Lesson Vocabulary Equivalent Equations Equations that have the same solutions. Addition Property of Equality Adding the same number to both sides of the equation doesn't change the equation. Subtraction Property of Equality Subtracting the same number from both sides of the equation doesn't change the equation. Isolate Means to get a variable all alone by itself.  You do this using the other properties mentioned in this section.  Once you have the variable all alone by itself, you have the answer to the algebra problem. Inverse Operations Inverse operations "undo" other operations.  For example, subtraction undoes addition; multiplication undoes division; and so on.  Every mathematical operation has an inverse operation. Multiplication Property of Equality Multiplying both sides of the equation by the same number doesn't change the equation. Division Property of Equality Dividing both sides of the equation by the same number doesn't change the equation.

 Textbook English Video Tutorials Textbook Spanish Video Tutorials None None

 Video Tutorials Topic Problem Time (min: sec) Solving One-Step Equations a + 5 = 54 1:54 Solving One-Step Equations (x/3) = 14 2:22 Solving One-Step Equations x + 11 = 77x = 21(5x/12) = (2/3) 12:30