Steps to Solve System of Equations

FOLLOW THE STEPS!! 
Solve the system of equations:
y = 2
x + y = 2
1.  Substitute y for 2 in the 2nd equation
2.  Subtract 2 from both sides 
3.  Your answer is (x,y) 

• (0, 2)

• (2, 2)

FOLLOW THE STEPS!! 
Solve this systems of equations
x + y = 7
y = 4
1. Substitute y for 4 in the second equation
2. Subtract 4 from both sides 
Your answer is (x,y)

• (3,4)

• (-1, 4)

• No solution 

• Infinite solutions

What is the solution to the system?
Remember you first find your x value by going either up or down! 
Your final answer is (x, y)

• (0, 3)

• (1, -1)

• (-3, 1)

• (1, 3)

What is the BEST FIRST step to solve this system by elimination:

• Add the equations

• Multiply the second equation by -4

• multiply the first equation by 2 and the second equation by 9

• Multiply the first equation by -1

Which of the following could be a first step when solving using elimination for the given system of equations?

• Multiply the first equation by 3 and the second equation by 2

• Multiply th first equation by -3 and the second equation by 2

• Multiply the first equation by -5

  and the second equation by 3

• Multiply the first equation by 5 and the second equation by -3

• Multiply the first equation by 5 and the second equation by 3

Which of the following could be a first step when solving using substitution for the given system of equations?

Solve this system

• (1, -4)

• (1, 4)

• (-4, -7)

• (-7, -4)

Tags

AI.9.5.C

• 1

• -1

• 3

• 4

Tags

AI.9.5.C

Solve the system of equations

• (-3, 2)

• (-3, 6)

• (-3, -2)

• (-3, -6)

Tags

AI.9.5.C

Solve the system of equations

• (-4, 1)

• (4, -1)

• (4, 5)

• (5, 4)

Tags

AI.9.5.C