Systems of Equations Elimination Addition Subtraction

Solve the system by elimination.  

−8x − 10y = 20
−8x − 6y = −4 

• Infinite number of solutions  

• (6, 5) 

• (−6, −5) 

• (5, −6) 

Solve the system

-4x - 2y = -12

4x + 8y = -24

• (6, 0)

• ( 6 , -6 )

• ( -6 , 6 )

• ( 3 , -3 )

Solve the system of equations.

x + 5y = -27

2x + 5y = -24

• (3, 6)

• (-3, -6)

• (-3, -4)

• (3, -6)

Solve for x and solve for y
3x  - 3y = 33
x - y = 11

• no solution

• infinitely many solutions

• (11, 0)

• (-11, 22)

3x – y = 26

–2x – y = –24

Two times a number added to another number is 25. Three times the first number minus the other number is 20. Find the numbers.

x – y = 1

x + y = 3

x + 4y = 11

x – 6y = 11

3x + 4y = 19

3x + 6y = 33

3x + 4y = 2

4x – 4y = 12