Solving 2 step equations

Solving 2 step equations

• 1.
  Solving Two-Step Equations Math 1 https://www.google.com/search? q=Teacher+at+chalkboard+clipart&biw=1914&bih=966&source=lnms&tbm=isch&sa=X&ved=0ahUKEwi_v7KPjtTPAhWKSiYKHabFCqIQ_AUIBigB#tbm=isch &q=two+step+equations+clipart&imgrc=RBblPeqpa94hXM%3A
• 2.
  What??? I justlearned 1-step! Relax. You’ll use what you already know to solve 2-step equations.  http://www.memrise.com/user/Javitha/
• 3.
  So, what’s first? Youneed to break the equation into two steps. http://www.clipartkid.com/any-questions-cliparts/
• 4.
  STEP 1 The firststep will be either adding or subtracting.
• 5.
  STEP 2 The secondstep will be either multiplying or dividing.
• 6.
  Let’s try aproblem. 8x + 5 = 61 This problem has addition, so we need to subtract first. - 5 - 5 Whatever we do on one side, we have to do on the other. 8x 56=
• 7.
  Now, Step 2. 8x= 56This problem has multiplication, so we need to divide now. Whatever we do on one side, we have to do on the other.8 8 x = 7
• 8.
  Let’s try anotherproblem. 3a - 8 = 4 This problem has subtraction, so we need to add first. + 8 + 8 Whatever we do on one side, we have to do on the other. 3a 12=
• 9.
  Now, Step 2. 3a= 12This problem has multiplication, so we need to divide now. Whatever we do on one side, we have to do on the other.3 3 a = 4
• 10.
  Okay, let’s practice! Problem1 -12 = -3x + 6
• 11.
  Answer 6 = x
• 12.
  Problem 2 -4x +20 = 68
• 13.
  Answer X = -12
• 14.
  More Practice Problems The goal is to get the variable by itself. Leave the variable where it is, and move everything away from it.  Follow your steps for solving an equation. 1) Undo addition/subtraction with subtraction/addition 2) Undo multiplication/division with division/multiplication  Write your steps neatly.  Check to make sure your answer makes sense. Plug your answer back in for the variable in the original problem. Simplify, and make sure you get a true statement.
• 15.
  Now it’s yourturn! Copy these problems onto your paper. Break each problem into 2 parts to solve. Show all of your work! 7f + 5 = 40 5q – 7 = 13 12t – 6 = 90 4y + 8 = -12
• 16.
  Just for fun! •Above image from http://www.transum.org/Software/SW/Starter_of_the_day/starter_December23.ASP