(–5.7 • 2) • 8 = –5.7 • (2 •x )

Question

(–5.7 • 2) • 8 = –5.7 • (2 •x  )

anonymous · Answer

I will give a medal

rational · Answer

$$\large (-5.7 \bullet 2) \bullet 8 = -5.7 \bullet(2\bullet x)$$

like that?

anonymous · Answer

ya

rational · Answer

$$\large (-5.7 \bullet 2) \bullet 8 = -5.7 \bullet(2\bullet x)$$

simply cancel $\large -5.7 \bullet 2$ both sides, you get
$$\large 8 = x$$

rational · Answer

which is same as
$$\large x=  8$$

anonymous · Answer

thanks

rational · Answer

yw

anonymous · Answer

Which property could be used to find the missing number?

 

(–7.3 + 5.2) + 11 = –7.3 + (   + 11)
  
 
 

 
 

  

  A. 
 
associative property
   
   

 
 

  

  B. 
 
commutative property
   
   

 
 

  

  C. 
 
distributive property

anonymous · Answer

can u help me with that

rational · Answer

$$\large \color{blue}{(}a+b\color{blue}{)} + c =  a + \color{blue}{(}b+c\color{blue}{)}$$

Notice that we're just changing the parenthesis here, this is called Associative property of addition