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Question 1) Use substitution to solve the system. 3x + 4y= -1 x + 2y= 1 2) Solve by the elimination method. 3x – y=1 x + 8y= 42 3) Solve by the elimination method. 9x + 9y=27 -9x + y= 23

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Question

1) Use substitution to solve the system.3x + 4y= -1x + 2y= 1
2) Solve by the

elimination method.

3x – y=1

x + 8y= 42

3) Solve by the elimination method.

9x + 9y=27

-9x + y= 23

 
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