Translate the pharse into a mathmatical expression and than simplify.

Seven times a number decreased by twice the same number.

(a) Write the corresponding mathematical expression. (Type an expression using x as the variable do not simplify.)

(b) The simplified expression is? (Type an expression x as the variable.)

Ralph L. answered • 04/19/13

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a) 7x - 2x

b) 5x

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