Title: Solving 2Step Variable Equations
1Solving 2-Step Variable Equations
2What??? I just learned 1-step!
- Relax. Youll use what you already know to solve
2-step equations.
3So, whats first?
- You need to break up the equation into its two
steps.
4STEP 1
- The first step will always be either adding or
- subtracting.
-
5STEP 2
- The second step will always be either
- multiplying or dividing.
6Lets try a problem.
- 5
- 5
This problem has addition, so we need to subtract
first.
Whatever we do on one side, we have to do on the
other.
56
8x
7Now, Step 2.
Whatever we do on one side, we have to do on the
other.
This problem has multiplication, so we need to
divide now.
8
8
x
7
8Lets try another problem.
8
8
This problem has subtraction, so we need to add
first.
Whatever we do on one side, we have to do on the
other.
12
3a
9Now, Step 2.
Whatever we do on one side, we have to do on the
other.
This problem has multiplication, so we need to
divide now.
3
3
a
4
10Now you try some problems.
- Copy these problems onto a piece of paper.
- Break each problem into 2 parts to solve.
- Show all your work!
12t 6 90
7f 5 40
5q 7 13
4y 8 -12