For this case we have the following equation:

We apply distributive property on the left side of the equation, taking into account that:

So:

Subtracting 3m from both sides of the equation:

Equal signs are added and the same sign is placed:

We subtract 6 from both sides of the equation:

We divide between -4 to both sides of the equation:

Thus, the solution of the equation is
ANswer:
