Solve One-Step Equations

What is the error?

 $\ \ \ \ \ -0.8\ +\ r\ =\ 12.6$  
 $\ +\left(-0.8\right)\ \ \ \ \ \ \ \ \ +\left(-0.8\right)$  
 $\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ r\ =\ 11.8$  

• Subtract -0.8 from each side not add

• Divide -0.8 from each side not add

• Subtract 12.6 from both sides.

Tags

CCSS.HSA.REI.A.1

A discounted amusement park ticket cost $44 and it costs $12.95 less than the original price p. Write and solve and equation to find the original price.

• $56.95

• $45.65

• $60.00

• $65.95

Tags

CCSS.6.EE.B.7

The temperature at 5 P.M. is 20 degrees F. The temperature at 10 P.M. is -5 degrees F. How many degrees did the temperature fall?

• 25

• 40

• 15

• 20

Tags

CCSS.6.NS.C.5

CCSS.6.NS.C.7

A biker orders 162 eggs. Each cartoon contains 18 eggs. What equation can you use to find the number x of cartons? Explain your reasoning and solve the equation.

• 162x = 18

• 
  

  $\frac{x}{18}=\ 162$
  

• 18x = 162

• x +18 = 162

Tags

CCSS.4.NBT.B.6

The length of an American flag is 1.9 times its width which is 9.5 ft. What is the width of the flag?

• 5 ft

• 10 ft

• 19 ft

• 20 ft

Tags

CCSS.6.EE.B.7

 $10\pi=2x$  

•  $5\pi=x$  

• 8 = x

•  $8\pi=x$  

• 5 = x

Tags

CCSS.6.EE.B.7

 $\frac{x}{3}=10$  

• x = 30

• x = 13

• x = 7

• x = 3.33

Tags

CCSS.6.EE.B.7

 $\frac{2}{3}x\ =20$  

• x = 30

• x = 23

• x = 30

• x = 19

Tags

CCSS.6.EE.B.7

Which operations are inverses of each other?
+, -,  $\times,\ \div$  

• +, -

• +,  $\div$  

• -, x

•  $\div$  , x

Tags

CCSS.HSA.REI.A.1

Which property of equality would you use to solve the equation 14x = 56?

• Addition Property of Equality

• Subtraction Property of Equality

• Division Property of Equality

• Multiplication Property of Equality

Tags

CCSS.HSA.REI.A.1