Answer:
Explanation:
so... 3(x+6)=-9
at 1st you do 3*x which is 3x then 3*6=18
all together is (3x+18)=-9
then get rid of brackets 3x+18=-9
after that take away 18 from both sides 3x+18=-9
-18 -18
which is 3x = -27
then you divide 3 in the both side
its going to be 3x = -27
3/3=1x or x then -27/3 = -9
so x = -9