Simple Substitution

If x = 5, what is the value of 3x + 4?

• 19

• 15

• 14

• 18

Tags

CCSS.6.EE.A.2C

Calculate the value of 4x if x = 3.

• 12

• 10

• 8

• 16

Tags

CCSS.6.EE.A.2C

If c = 3, what is the result of 4c + 1?

• 13

• 12

• 15

• 10

Tags

CCSS.6.EE.A.2C

Calculate the value of 8m - 5 when m = 3.

• 19

• 18

• 21

• 24

Tags

CCSS.6.EE.A.2C

solve by substitution: y=3x+14
y=-4x

• y=3

• y=1

• y= - 2

• y=4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to this system? Solve by substitution.
y= 4x + 3
2x - 3y = 21

• (3,-9)

• (-3,-9)

• (-3,9)

• (0,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

If x+y=14 and x-y=4 then the values of x and y are_________

• x=4 and y = 5

• x = 9 and y = 7

• x = -6 and y = 5

• x = 9 and y = 5

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following system of equations: 5x - 4y = 3 and 2x + 3y = 8

• x = 4, y = 3

• x = 2, y = 1

• x = 3, y = 2

• x = 1, y = 5

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Read each step of the Substitution method for solving a System of Equations. Then, match the result of performing the step with the step.

• x = 2

• Step 3: Solve the equation for a value

• (2, 1)

• Step 1: Solve one equation's variable (expression)

• -3x + 6(5-2x) = 0

• Step 5: Present the solution as an ordered pair

• y = 5 - 2x

• Step 2: Substitute the expression in the other equation

• 2(2) + y = 5

  y = 1

• Step 4: Substitute the variable's value in the other equation; solve

Tags

CCSS.MATH.CONTENT.HSA.REI.C.6

CCSS.MATH.CONTENT.HSA.CED.A.3

y = x + 6
y = 3

• -3,3

• -9,3

• -18,2

• 21,0

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6