Systems Substitution

What is the best method for solving this system of equations?

• Graphing

• Googling

• Elimination

• Substitution

Solve the following systems of equations using substitution:

x = 6

y = 2x - 3

• (6, 6)

• (6, 9)

• (9, 6)

• (9, 9)

Solve the following systems of equations using substitution:

5x - 2y = 3

y = 2x

• (6, 3)

• (1, 2)

• (3, 6)

• (2, 1)

Solve the equation from the video:

y = x + 8

4x - y = -2

• (2,8)

• (2,10)

• (-2,10)

• (-2,-10)

Solve the System of Equations by Substitution

y = 5x + 6

-3x + 4y = 7

• (1,-1)

• (1,1)

• (-1,1)

• (-1,-1)

Solve:

y = 7x + 9

2y + 4x = -18

• (5, 0)

• (9, 18)

• (-2, -5)

• (1, 16)

4x-5y=21

x-3y=7

• 4,-1

• -4,-1

• -3,2

• 1,-3

x-y=9

-7x-y=-15

• -3,6

• 3,-6

• 3,6

• 6,3