2-Step Equations

Solve 2x - 3 = 1 

• 3
• 2
• 1
• -2

Solve  12 - 6y = 24

• -1
• -2
• -3
• -4

What is the first step in solving the equation?

• Add 4 to each side
• Subtract 4 from each side
• Subtract 2y from each side
• Divide each side by 2y

The objective when solving an equation is to....

• isolate the variable.
• check the solution.
• guess and check.
• Combine Like Terms.

Solve:

 $20=2-a$  

•  $a=18$  
  

•  $a=-18$  
  

•  $a=-10$  
  

•  $a=12$  
  

Solve:

 $6n+4=-26$  

•  $n=-6$  
  

•  $n=-5$  
  

•  $n=8$  
  

•  $n=-4$  
  

 $7+\frac{a}{3}=5$ 

• a= -2

• a= -6

• a= 3

• a= 15

 $\frac{x}{5}-13=20$ 

• 145

• 165

• 180

• 190

Solve for d:

• d = 24

• d = -48

• d = -3

• 12

 $\frac{z}{6}-8=0$ 

• z = 48

• z = 0

• z = 56

• z = 42