[A|U3|H1|B3] Substitution Method

Which option(s) show a correct way to perform substitution in this system? [Select ALL that apply]

$y=6x$
$x+y=28$

•  $x+\left(6x\right)=28$  

•  $\left(28-x\right)=6x$  

•  $y=6\left(28-y\right)$  

•  $\left(y-6\right)+y=28$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system below using substitution:

 $y=6x$ 
 $x+y=28$ 

*Make sure you put parenthesis around your ordered pair and use no spaces.  If necessary you may use "No Solution" or "Infinite Solutions".

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which option shows a correct way to perform substitution in this system?

 $3x+1=y$ 
 $2x+3y=25$ 

•  $3x+1=\left(3x+1\right)$  

•  $2x+3\left(3x+1\right)=25$  

•  $2x+\left(3x+1\right)=25$  

•  $3x+1=\left(25-2x\right)$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system below using substitution:

 $3x+1=y$ 
 $2x+3y=25$ 

*Make sure you put parenthesis around your ordered pair and use no spaces.  If necessary you may use "No Solution" or "Infinite Solutions".

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which option show a correct way to perform substitution in this system?

 $3x+5y=1$ 
 $x-4y=6$ 

•  $3\left(6+4y\right)+5y=1$  

•  $3\left(6-4y\right)+5y=1$  

•  $3x+5\left(6-x\right)=1$  

•  $3x+5\left(x-4y\right)=1$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system below using substitution:

 $3x+5y=1$ 
 $x-4y=6$ 

*Make sure you put parenthesis around your ordered pair and use no spaces.  If necessary you may use "No Solution" or "Infinite Solutions".

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which option shows a correct way to perform substitution in this system?

 $y=3x-7$ 
 $6x-2y=12$ 

•  $6\left(3x-7\right)-2y=12$ 
  

•  $6x-\left(3x-7\right)=12$  

•  $6x-2\left(3x-7\right)=12$  

•  $6x-2\left(y=3x-7\right)=12$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system below using substitution:

 $y=3x-7$ 
 $6x-2y=12$ 

*Make sure you put parenthesis around your ordered pair and use no spaces.  If necessary you may use "No Solution" or "Infinite Solutions".

Tags

CCSS.8.EE.C.8B

Solve the system below using substitution:

 $x-y=2$ 
 $x+2y=17$ 

*Make sure you put parenthesis around your ordered pair and use no spaces.  If necessary you may use "No Solution" or "Infinite Solutions".

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which option(s) show a correct way to perform substitution in this system? [Select ALL that apply]

 $x-y=2$ 
 $x+2y=17$ 

•  $\left(17-2y\right)-y=2$  

•  $x-\left(17-x\right)=2$  

•  $\left(2+y\right)+2y=17$  

•  $x+2\left(2-x\right)=17$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6