Substitution Variable

Evaluate the following expression when a = -2, b = -1, and c = 5

Tags

CCSS.6.EE.A.2C

Evaluate the following expression when x = -24 and y = -8

• undefined

Evaluate 4y  if       y = 3

• 7

• 12

Tags

CCSS.6.EE.A.2C

Evaluate 2r + 1      if   r = 3

• 6

• 5

• 7

• 8

Tags

CCSS.6.EE.A.2C

Find the value of (x, y) that satisfies the equations by solving the system using substitution.
 
5x + 4y= −14
y =  −7x  −  15  The solution is (a)   .

• (-2, -1)

• (0, 0)

• (1, 1)

• (2, 2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following systems of equations using substitution:

x = 6

y = 2x - 3

• (6, 6)

• (6, 9)

• (9, 6)

• (9, 9)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of linear equations by substitution.

-5x + 3y = 51

y = 10x - 8​

​ ​ ​ (a)   ​ (b)  

• y = -22

• x = -3

• x = 59/25

• y = 15.6

• x = 3

• y = 22

• x = -8

• y = 4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of linear equations by substitution.

5x + 2y = 9

x + y = -3

​ ​ ​ (a)   ​ (b)  

• y = -22

• x = -3

• x = 1

• y = -4

• x = 5

• y = -8

• x = -8

• y = 4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

3x + 8   if x = 2

• 13

• 14

• 15

• 16

Tags

CCSS.6.EE.A.2C

Evaluate 8a - b if a = 10 and b = 6

• 74

• 38

• 86

• 8106

Tags

CCSS.6.EE.A.2C