2m+19=m+40
Subtract m from both sides of the equation.
2m+19-m=40
Subtract m from 2m.
m+19=40
m+19=40
Subtract 19 from both sides of the equation.
m=40-19
Subtract 19 from 40.
m=21
m=21
Solve for m 2m+19=m+40
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