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9 (b-87)=54 (b-7)
We simplify the equation to the form, which is simple to understand
9(b-87)=54(b-7)
Reorder the terms in parentheses
+(+9b-783)=54*(b-7)
Remove unnecessary parentheses
+9b-783=+54+*(+b-7+)
Reorder the terms in parentheses
+9b-783=+(+54b-378)
Remove unnecessary parentheses
+9b-783=+54b-378
We move all terms containing b to the left and all other terms to the right.
+9b-54b=-378+783
We simplify left and right side of the equation.
-45b=+405
We divide both sides of the equation by -45 to get b.
b=-9
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