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March 25, 2017

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Solve the system by either elimation or substitution:
x+8y=18
y=-2/7x-18/7

  • Algebra - ,

    Putting the y in (substitution)..
    x + 8(-2/7x-18/7)=18
    x-16/7x-144/7=18
    These fractions get ridiculous so I'm sure you can work it out from there. Get rid of the -144/7 by adding 144/7 to the right side. Then do x-16/7x. Then solve.

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