Answer:
j = -2
Explanation:
It usually works well to start by eliminating parentheses.
15j +6 = 6j -12
Now you can subtract 6j from both sides to get the variable term on one side of the equation only:
9j +6 = -12
And you can subtract 6 from both sides to get the variable term by itself:
9j = -18
Now, dividing by the coefficient of the variable gives you the solution:
j = -2
The solution is j = -2.