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Algebra

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i don't know how to slove the/A system by using substitution
3x+4Y=9
y=x-3

  • Algebra - ,

    y = x-3

    3x + 4y = 9

    Substitute x-3 for y in second equation and solve for x. Insert that value into the first equation and solve for y. Check by inserting both values into the second equation.

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