9/14 Warm Up

What was done to solve the equation?

(Line 1) 5x - 8 = 32

(Line 2) 5x = 40

(Line 3) x = 8

• add 8 to both sides, then divide both sides by 5

• add 8 to both sides, then divide both sides by 40

• subtract 8 from both sides, then divide both sides by 5

• subtract 8 from both sides, then multiply both sides by 5

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

What is the first step to solve for x.  $-9\ +\ 3x\ =\ 10$  

• Subtract 9 from both sides of the equation.

• Add 9 to both sides of the equation.  

• Subtract 3 from both sides of the equation.

• Add 10 to both sides of the equation.  

The goal of solving two-step equations is to:

• francine
• Find the coefficient 
• Find the value of the variable

Using the "opposite operation" to "undo" and isolate the variable when solving an equation is more commonly called...

• Inverse operations
• math
• variable
• PEMDAS

What is step 1 in the following equation?

 $5x\ -\ 8\ =\ 18$  

• Divide by 5
  

• Add 8
  

• Subtract 8
  

• Multiply by 5