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John, Sam & Rob were playing cards. John scored x points,Sam scored 3 fewer than John. Rob scored twice Sam's points. together they scored 50 points. write an expression for rob​

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Work Shown:

john = x

sam = x-3 since he scored 3 fewer than john

rob = 2*(sam) = 2(x-3) = 2*x-2*3 = 2x-6
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