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Algebra

posted by on .

How do I solve by the substitution method? 7x +6y=13
x= 35-5y. I need help figuring this out.

  • Algebra - ,

    Substitute 35 - 5y for x in the first equation. That will give you
    245 -35y + 6y = 13
    232 = 29 y
    y = 8
    x = 35 - 40 = -5

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