6.4.5 Live Classroom

The solution to a system of linear equations is ALWAYS...

• a fraction.

• an ordered pair.

• a whole number.

The solution (x, y) to a system of equations is the point where they...? 

• Don't touch.

• Smile and Nod.

• Intersect.

Which variable will be eliminated if you added these two equations together?

• The x.

• The y.

• The z.

Which variable will be eliminated if you added these two equations together?

• The  x
• The  y
• The  z

Choose the next step to eliminate the x-terms.

• Multiply the top equation by -3.

• Multiply the bottom equation by 3.

• Multiply the top equation by -6.

Choose the next step to eliminate the y-terms.

• Add the equations

• Multiply the first equation by -2

• Multiply the first equation by 2

Choose the next step to eliminate the y-terms.

• Multiply the top equation by 6.

• Multiply the bottom equation by -1.

• Multiply the top equation by -6.

Solve the system using Elimination

• (2, 2)

• (6, 2)

• (2, 6)

Solve the system using Elimination

• (6, 6)

• (-5, 2)

• (2/3, 1)

Solve the system by Elimination.

• (7, 1)

• (7, -1)

• No Solution