Expand.
\[12m-28=9m+27\]
Add \(28\) to both sides.
\[12m=9m+27+28\]
Simplify \(9m+27+28\) to \(9m+55\).
\[12m=9m+55\]
Subtract \(9m\) from both sides.
\[12m-9m=55\]
Simplify \(12m-9m\) to \(3m\).
\[3m=55\]
Divide both sides by \(3\).
\[m=\frac{55}{3}\]
Decimal Form: 18.333333
m=55/3
