Solving System of Linear Equation by Substitution

The final answer is:

Solve an equation for y, find y

What is the solution?

• (6, 3)

• (3, 6)

• (-6, 3)

• No solution

What is the solution to this system?

• (3,1)

• No solution

• Infinite solutions

• (1,3)

How many solutions will this system have?

• No solution

• One Solution

• I Don't Know

• Infinitely Many Solutions

Buzz graphed two lines in order to find the solution to a given system of equations.
What is the solution?

• (-1, 4)
• (1, -4)
• (-4, 1)
• (4, -1)

Solve this system by substitution.

• (1, -4)

• (1, 4)

• (-4, -7)

• (-7, -4)

Solve the systems by substitution:

y = 2x

x + y = 9

• (6, 2)

• (3, 6)

• (2, 6)

• (6, 3)

What variable do you eliminate, and what do you multiply the equation(s) by?

5x + y = 9

10x − 7y = −18

• You eliminate x, and multiply the top equation by 11

• You eliminate y, and multiply the top equation by 7

Solve the system given:
3x - y = 7
2x + y = 3

• (-1,2)
• (5,4)
• (4,5)
• (2,-1)