Verified Answer :

\(-12x-3y=15\ \ \ |add\ 12x\ to\ both\ sides\\\\-12x+12x-3y=15+12x\\\\-3y=12x+15\ \ \ |divide\ both\ sides\ by\ (-3)\\\\-3y:(-3)=12x:(-3)+15:(-3)\\\\\huge\boxed{y=-4x-5}\)

AL2006


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  

Related Questions