Solving Systems of Equations by elimination

Front

Solve by elimination:
4x+9y=28
-4x-y=-28

Back

(7,0)

Front

Solve by elimination:
3x+7y=23

-3x-7y=-17

Back

No solution

Front

Solve by elimination:
-9x-4y=-20

5x+4y=4

Back

(4,-4)

Front

Solve by elimination:
7x+y=-9

-3x-y=5

Back

(-1,-2)

Front

Solve by elimination:
4x+4y=4

3x+4y=10

Back

(-6,7)

Front

Solve by elimination:
-x+2y=17

2x+2y=-10

Back

(-9,4)

Front

Solve by elimination:
9x-4y=7

x-4y=-17

Back

(3,5)

Front

Solve by elimination:
-12x-10y= 0
6x+5y= -1

Back

no solution

Front

Solve by elimination: 2x+9y= -7, 6x-3y= 9

Back

(1,-1)

Front

Solve by elimination:
-6x+y= -2
-3x-6y= 12

Back

(0,-2)