Two Step Equations

What is the first step to solve this equation:

11 - 3x = 44

• Add 3 to both sides

• Subtract 11 from both sides

• Add 11 to both sides

• Divide 3 on both sides.

x - 62 = 123

How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side.

• Subtract 62 from each side.

• Multiply each side by 62.

• Add 123 to each side.

Tags

CCSS.6.EE.B.7

Which two steps will be needed to solve this equation?

 $4x-15=25$  (select both)

• add 15 to both sides

• subtract 15 from both sides

• Multiply by 4 on both sides

• Divide by 4 on both sides

What two steps are needed to solve this equation?

 $-9x+6=78$  

• subtract 6 from both sides

• add 6 to both sides

• Multiply by -9 on both sides

• Divide by -9 on both sides

What two operations are needed to solve this equation?

 $\frac{x+12}{5}=20$  

• add 12

• subtract 12

• multiply by 5

• divide by 5

Which operation must be done first?

 $\frac{x+12}{5}=20$  

• add 12

• subtract 12

• multiply by 5

• divide 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

Tags

CCSS.7.EE.B.4A

What operations must be used to solve this equation?

 $-x-10=100$  

• subtract 10 then divide by -1

• add 10 then divide by -1

• subtract 10 then you're done

• add 10 then you're done

Is 5 the solution to this equation?

 $-6x+11=-41$  
(hint: substitute the 5 in for x to check if the equation would be true)

• yes, x=5

• no,  $x\ne5$  

Does x = 14 in this equation?

 $\frac{x}{2}-6=1$  

• yes, x=14

• no,  $x\ne14$