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Popular Word Problems >

when 15 is decreased by three times a number, the result is 21

Solution

w h e n 15 i s d ecre a se d b y t h ree t im es a n u mb er, t h e res u lt i s 21

Solution

The number : - 2

Solution steps

Represent the number with

x

A.T.Q.:

15 - 3 x = 21

Solve for

x, 15 - 3 x = 21 : x = - 2

The number : - 2

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