ambercx ambercx

03-11-2016
Mathematics

contestada

twelve is added to the product of a number and 5. the result is -3. find the number

Respuesta :

LittleRedMe LittleRedMe

03-11-2016

Work backwards. So instead of adding twelve, you take it away.

-3 - 12 = -15 / 5 = -3

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03-11-2016

number unknown = x

solution =

12 + ( 5x ) = - 3
12 + 5x = - 3
5x = - 15
x = - 3

i am a mathematics teacher. if anything to ask please pm me

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