Verified Answer :

-12b = 9

Get b by itself by dividing both sides by -12

b = -3/4

if a number is right beside a variable ( called the coefficient) and you want to isolate the variable, you have to divide both sides by the coefficient
-12b = 9
-12b / -12 = 9/-12
b= -9/12

to simplify
b =-3/4

You can easily turn that into decimal form or percent form
-3/4= -0.75 = -75%

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