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31 December, 19:05

Y=x

8x+2y=70

How do you solve this

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Answers (2)
  1. 31 December, 19:44
    0
    First you subtract 8x to both sides so you get

    2y=-8x + 70

    then you divide 2 with everything to get y by itself

    -4x+35=y
  2. 31 December, 20:45
    0
    Is Y=x you would change 2y to 2x

    you would combine 8x+2x=10x

    You are now left with 10x=70

    Now you would divide 10 from both sides to get x=7
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