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7v-10 given that -9v-9=9 simplify the answer. I do not understand the question, can someone help pls.

  • math -

    I believe the question should read:

    Evaluate 7v-10 given that -9v-9=9 simplify the answer.

    If that's the case, start with
    -9v-9=9
    and solve for v.
    Substitute the (numerical) value of v into 7v-10 to get the answer required.

  • math -

    -6(9-9v)

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