How do you solve #(15-a)/3=-9#?

Dec 24, 2016

#(15-a)/3=-9#

or, #(15-a)/3**3=-9*3#

or, #15-a=-27#

or, #15-15-a=-27-15#

or, #-a=-42#

or, #cancel(-)a=cancel(-)42#

or, #a=42#

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