algebra 1

mathew has saved 50 dollars and each week he increases his savings by 5 dollars. his brother mark has 35 dollars saved and each week he saves an additional 7 dollars. how long will it take for mark to have more money than matthew?

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asked by kathy
  1. mathew: amount = 50 + 5w
    brother: amount = 35 + 7w

    when is 35 + 7w = 50 + 5w ?

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    posted by Reiny

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