equivalent equations

Which of the following expressions is equivalent to 12a + 3a?

• a(12 + 3a)
• 3a(4 + 1)
• 3(12a + a)
• a(12 + 3a)

Tags

CCSS.6.EE.A.4

Find an equivalent expression for the given expression: 36x + 24

• 4(9x + 7)
• 4(9x + 8)
• 2(18x + 12)
• 12(3x + 3)

Tags

CCSS.6.EE.A.4

Select all equations that are equivalent to

 $3\left(x+6\right)=4x+7$  .

•  $3\left(x+6\right)=4x+7$  

•  $3x=4x+7$  

•  $3x+18=4x+7$  

•  $18=x+7$  

Tags

CCSS.8.EE.C.7A

Which equation is equivalent to the equation $5x+30=45$  ?

•  $35x=45$  

•  $5x=75$  

•  $5\left(x+30\right)=45$  

•  $5\left(x+6\right)=45$  

Tags

CCSS.8.EE.C.7A

Select all the equations that have the same solution as  $2x-5=15$  .

•  $2x=10$  

•  $2x=20$  

•  $2\left(x-5\right)=15$  

•  $2x-20=0$  

•  $4x-10=30$  

Tags

CCSS.8.EE.C.7A

Select all the equations that have the same solution as $2x-5=15$  .

•  $2x=10$  

•  $2x=20$  

•  $2\left(x-5\right)=15$  

•  $2x-20=0$  

•  $4x-10=30$  

Tags

CCSS.8.EE.C.7A

 $9x^{ }-12$  

Find an equivalent expression:

•  $3x\left(3-4x\right)$  

•  $3\left(3x-4\right)$  
  

•  $4\left(3x-4\right)$  

•  $3\left(6x-9\right)$  
  

Tags

CCSS.6.EE.A.4

Choose the equivalent expression.

15 + 4(5y + 10)

• 5y + 25

• 20y - 25

• 20y + 40

• 20y + 55

Tags

CCSS.6.EE.A.4

Which expression is equivalent to 6(3y - 2y + 7)?

• 18y + 7
• 21y - 14y + 7
• 18y + 42
• 6y + 42

Tags

CCSS.6.EE.A.4

Which of the following is NOT equivalent to 42x + 24?

• 2(21x + 12)

• 3(14x + 8)

• 6(7x + 4)

• 7(6x + 17)

Tags

CCSS.6.EE.A.4