Solving System of Equations by Elimination

​Solving Systems of Equations by

​With the same Coefficient

​I am learning how to solve a system of linear equations by elimination.

​Learning Intentions

Success Criteria

I can add/subtract the two equations in a system of equations to produce a single equation containing one unique variable.

​opposite

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Multiple Choice

4x +  8y = 20

-4x + 2y = -30

Which variable will be eliminated by adding the two equations?

• The  x

• The  y

• The  z

• The unknown

Multiple Choice

Solve the system:

x + 6y = 17

x - 3y = 8

• (11, 1)

• (5, 2)

• (1, 11)

• (2, 5)

Multiple Choice

Solve the system of equations below (*): $$2x=8\ +3y$$   $$-2x+4y=-12$$  

• $$\left(-2,-4\right)$$  

• $$\left(-2,4\right)$$  

• $$\left(2,-4\right)$$  

• $$\left(2,4\right)$$