10th grade algebra

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solve the equation 2x+y=9 for y

  • 10th grade algebra -

    subtract 2x from each side.

  • 10th grade algebra -

    i don't understand can you be specific please

  • 10th grade algebra -

    for 2x+y=9 you do
    -2 -2 (subtract two from both sides)
    then you would get:
    y=9-2x
    (remember that when you move something to the other side you do the opposite equation)(in this case the opposite of positive is negative, so the 2x becomes negative)

  • 10th grade algebra -

    sorry subtract 2x from both sides
    my mistake

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