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11-10-2018
Mathematics

contestada

-12-a=6y+12
solve the equation

Respuesta :

11-10-2018

Answer:

a = -1

Step-by-step explanation:

[tex]-12-a=4a-7\qquad|\text{add 12 to both sides}\\\\-a=4a+5\qquad|\text{subtract 4a from both sides}\\\\-5a=5\qquad|\text{divide both sides by -5}\\\\\boxed{a=-1}[/tex]

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