15 decreased by twice a number algebraic expression?

asked Mar 7, 2015 131k views

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5 votes

$x-\ number\\\\twice\ a\ number:\\2x \\\\ Write\ it\ as\ a \ function: \\y=15-2x$

Mattes answered Mar 7, 2015

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4 votes

15-2x
A number is a variable so use a letter like x for them

Chony answered Mar 11, 2015

by Chony

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