Substitution

Solve the following systems of equations using substitution:

y = 3 - x

3y + x = 5

• No solution

• (1, 2)

• (3, 0)

• (2, 1)

Solve the following systems of equations using substitution:

y=8x+1

y=6x+3

• (1, 9)

• (4, 14)

• (0, 1)

• (2, 4)

The first step in solving using the substitution method is __________.

• get x by itself
• get y by itself
• get either variable by itself
• add the equations together

Solve the following systems of equations using substitution:

2y + x = -15

x = 3y

• (-3, -9)

• (-9, -3)

• (-3, 9)

• (9, -3)

Solve the following systems of equations using substitution:

• (-6, 1)

• (1, -6)

• No solution

• Infinitely many solutions

When solving a system of equations by substitution, which statement results in infinitely many solutions?

• 4 = 7

• 2 = 2

• -3 = 3

• all of the above

When solving a system of equations by substitution, which statement results in no solution?

• 4 = 7

• -2 = 2

• -3 = 3

• all of the above

Solve the following systems of equations using substitution:

2y + x= 7

2x + y = 5

• (-1,4)

• (4,-1)

• (1,3)

• (3,1)

Solve the following systems of equations using substitution:

3x+y=-5

6x+2y=10

• No Solution

• Infinitely Many Solutions

• (2,3)

• (6,-2)

Solve the following systems of equations using substitution:

y = x

3x - 2y = 3

• (1,1)

• (3,3)

• (-2,0)

• (0,-2)