Math

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how do you solve this by substitution:
step by step

1. 5x-y=16
5x+2y=13

2. 3x-3y=9
2x-4y=-16

3. x=-6y
y=2/3x+5

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.

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