Can anyone me with this. it asks to solve and check your answer.

First, distribute 3 into the parenthesis(multiply it to every term inside):



Add 21 to both sides:



Subtract 15m to both sides:



Divide -11 to both sides:



To check our work we can plug this back into the original equation for 'm':





Multiply:



Distribute 3 into the parenthesis:



Subtract:



Both sides are equal to each other, so we solved it correctly.