Substitution

If x=y, then x be replaced by y in any equation or expression.

• Substitution Property

• Transitive Property

• Reflexive Property

• Symmetric Property

Tags

CCSS.7.EE.A.1

Solve the system:

3x + y = 19

2x - y = 6

• (5, 14)

• (4, 5)

• (5, 4)

• (14, 5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations.

• (10, 3)

• (6, 3)

• (15, 3)

• No solution

• Infinite Solution

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations.

• (11, 21)

• (3, 11)

• (11, -67)

• No solution

• Infinite solutions

Tags

CCSS.8.EE.C.8B

Which choice shows substitution correctly?

• 3x - (-6x +3) = 10

• 3(-6x + 3) - y = 10

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What equation will you get when applying substitution?

• -2(x - 2) + 3y = -1

• -2x + 3(x - 2) = -1

• -2x + 3y = x -2

• -2x + 4y = -3

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

x = y - 2
4x + y = 2

• (2,0)

• (0,2)

• (0, -2)

• (-2,0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What equation will you get when applying substitution?

• -2(x - 2) + 3y = -1

• -2x + 3(x - 2) = -1

• -2x + 3y = x -2

• -2x + 4y = -3

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

If x = -3, in the equation -2x + y = 15, what is y? Type in the number.

Solve the system of equations

• (1, -4)

• (1, 4)

• (-4, -7)

• (-7, -4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6