Solve Systems of Equations by Elimination

Solve by Elimination:

3x - 4y = -7

3x - 3y = 0

• x = 7, y = -7

• x = 7, y = -5

• x = -5, y = -7

• x = 7, y = 7

Solve by Elimination:

6x + 6y = 12

8x + 9y = 18

• x = -2, y = 2

• x = 0, y = 2

• x = 2, y = -2

• x = 0, y = -2

When solving systems of equations using the Elimination Method, which of the following statements is not correct?

• Both equations must be in Standard Form.

• Like terms must be lined up.

• To eliminate a variable, the coefficients must be positive and negative opposites of each other.

• Like terms do not have to be lined up.

Which variable will be eliminated when solving the following system of equations? 4x+8y=20 and -4x+2y=-30

• The x

• The y

• Neither variable

• Both Variables

Mr. Numbi bought a package of 3 chicken legs and a package of 7 chicken wings and had 45 ounces of chicken. Ms. Dawes bought a package of 3 chicken legs and 6 chicken wings and had 42 ounces of chicken.

How much did each chicken leg weigh?

__________ ounces

Solve the system of equations using the elimination method.

• (1,-6)

• (-6,1)

• (-1,6)

• (10,7)

• (3,1)

• (1,-3)

• (1,3)

• (4,18)

• (7,3)

• (1,0)

• (3,7)

• no solution