renee405 renee405

06-04-2017
Mathematics

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What is the value of x when y = 7

y = 0.3 x - 5

Respuesta :

06-04-2017

They tell you that y=7, so use this value for y in:

y=.3x-5 becomes:

7=.3x-5 add five to both sides

12=.3x divide both sides by .3

40=x

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