Math

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I SERIOUSLY need help!

Solve the linear system by using substitution.
x=6-4y
2x-3y=1

Explanation too, please!
Please and thanks!

  • Math -

    very very easy

    sub x = 6-4y into
    2x - 3y = 1
    2(6-4y) - 3y = 1
    12 - 8y - 3y = 1
    -11y = -11
    y = 1

    then x = 6 - 4(1) = 2

  • Math -

    Thank you, but:
    How did you go from 12-8y-3y to -11y?

  • Math -

    12 - 8y - 3y = 1
    12 - 11y = 1 , that should be clear
    12 -12 - 11y = 1 -12
    -11y = -11
    divide by -11
    y = 1

  • Math -

    Understood. Thank you.

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