Question 148371
Start with
{{{(9-2m)/7=19}}}


Multiply both sides by 7.

{{{((9-2m)/7)7=19(7)}}}


Simplify the last step

{{{9-2m=133}}}


Subtract 9 from both sides
{{{(9-2m)-9=(133)-9}}}


Simplify the last step
{{{-2m=124}}}


Divide both sides by -2

{{{(-2m)/-2=124/-2}}}


Simplify the last step
{{{m=-62}}}