Flyboy123 Flyboy123
  • 25-09-2015
  • Mathematics
contestada

Solve the literal equation for y.
-12x-3y=15

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Аноним Аноним
  • 25-09-2015
[tex]-12x-3y=15\ \ \ |add\ 12x\ to\ both\ sides\\\\-12x+12x-3y=15+12x\\\\-3y=12x+15\ \ \ |divide\ both\ sides\ by\ (-3)\\\\-3y:(-3)=12x:(-3)+15:(-3)\\\\\huge\boxed{y=-4x-5}[/tex]
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AL2006
AL2006 AL2006
  • 25-09-2015

You said that                             -12x - 3y  =  15

Add  3y  to each side:               -12x         =  15 + 3y

Subtract  15  from each side:   -12x - 15   =          3y

Divide each side by  3 :            -  4x - 5    =            y  

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