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posted by .

how do you solve this by substitution:
step by step

1. 5x-y=16

2. 3x-3y=9

3. x=-6y

thank you!

  • Math -

    Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.

    See your later post.

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