You can put this solution on YOUR website! 3(x+4)
This implies that the equation is equal to 0.
Using the distributive property, you would multiply each term inside the parentheses by whatever is outside of the parentheses.
3(x+4) comes out to be:
3x+12=0
Subtract 12 from both sides to get:
3x= -12
divide both sides by 3 to get:
x = -4