Solve for m
m=19
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-1+10m=189
Swap sides so that all variable terms are on the left hand side.
10m=189+1
Add 1 to both sides.
10m=190
Add 189 and 1 to get 190.
m=\frac{190}{10}
Divide both sides by 10.
m=19
Divide 190 by 10 to get 19.
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