Substitution Method

Substitution Method

by Jerfson Delphonse

Multiple Choice

What is the solution?

• (1, -1)
• (-1, 1)
• (0, -2)
• (0, 1)

Multiple Choice

This system has _____ solutions

• No

• 1

• 2

• Infinitely many

Multiple Choice

How many solutions will this system have?

• No Solution
• Infinitely Many Solutions
• No Clue
• One solution

Systems of Equations (Substitution)

​The substitution method requires that both equations be in slope-intercept form. This reason provides us the opportunity to set both equations equal to each other and use the multi-step equation process to solve.

Multiple Choice

Solve the system of equations using substitution:

4x - 2y = 6

y = 3x - 3

• (3, 6)

• (0, 1)

• (0, -3)

• (2, 3)

• No solution

Multiple Choice

Solve the system:
x + y = 19
y = 3x - 1

• (14, 5)
• (11, 8)
• (5, 14)
• (8, 11)

​Remember that if you find a value for x, there must be a value for y. The solution isn't complete until you've entered the value as a coordinate in the form (x,y).