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Pre-Algebra 7 Online
OpenStudy (anonymous):

Three-sevenths of a number is 21. Find the number.

OpenStudy (anonymous):

3/7 x = 21 three sevenths, of a number, the unknown we put as x, is equal to 21

OpenStudy (anonymous):

solve for x by multiplying each side by 7 and dividing each side by 3.

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