Question 852152
In order to solve, you will need to get q by itself on the right side of the equation.  To do this, first divide both sides of the equation by -3.  When you do this, you will get:


{{{15/-3=2q-1}}} ----->


{{{-5=2q-1}}}


Next, add 1 to both sides of the equation.  This will give you:


{{{-5+1=2q}}} ----->


{{{-4=2q}}}


Finally, if you divide both sides of the equation by 2, you will get q:


{{{-4/2=q}}} ----->


{{{-2=q}}}