Solving 2 step equations

SOLVING 2 STEP EQUATIONS

Multiple Choice

What is a 2-step problem?

• An equation where 2 steps are needed to solve it.

• An equation where only one step is needed to solve it.

• A problem with only one operation present.

• A problem where you find the square-root of a number.

Multiple Choice

What is the first step in solving this equation:
5x + 7 = 12

• Divide by 5
• Subtract 5
• Multiply by 7
• Subtract 7

Multiple Choice

The steps in solving 5b - 6 = 24 are:

• Add 6 to both sides and divide both sides by 5

• Add 6 to both sides and multiply both sides by 5

• Subtract 6 from both sides then multiply both sides by 5

• Subtract 6 from both sides then divide both sides by 5

Multiple Choice

Solve for x:
8x - 10 = -34

• 4
• 3
• -3
• -24

Multiple Choice

-4x + 1 = 21

• x=120

• x=5

• x=30

• x=-5

Multiple Choice

4a + 3 = 15

• 2

• 4

• 1

• 3

Multiple Choice

-8x + 9 = 33

• 3

• 50

• 16

• -3

Multiple Choice

27 = 5r + 2

• 5
• - 5
• 5.8
• - 5.8

Open Ended

Solve using the INVERSE operations method we taught in class

 $\frac{x}{3\ }+10\ =15$  

Step 1:




Step 2:

Open Ended

ERROR ANALYSIS: Jeff got this problem wrong. What were his mistakes?

 $\ \ \ \ \ \ \ \ \ \ \ \frac{1}{4}x\ +\ 8\ =\ 13$  

 $\left(\frac{4}{1}\right)\ \frac{1}{4}x\ +8\ =\ 13\left(\frac{4}{1}\right)$ 
                 $x\ +\ 8\ =52$  
 $\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -8\ \ \ \ \ \ \ \ -8\ \ \ \ \$   $x\ =\ 44$  

Open Ended

Solve Jeff'sequation correctly using the INVERSE operations method

 $\frac{1}{4}x\ +\ 8\ =\ 13$