You can put this solution on YOUR website!
Here's the problem restated:
Step 1. Isolate the variable by it's self
on the left hand side the two "19"'s cancel becoming...
"4-19" equals "-15" so rewriting
Step 2. Reverse whatever process is being done to "x" if "x" is being multiplied, you divide, if it's being divided, you multiply. etc
multiply both sides by two
The left hand side with "x" is being divided by "2" and multiplied by "2" these effects cancel each other out.
multiply the right hand side
To check our answer we input the solution we concluded which was "-30" into the original problem which was
Since we arrived at a mathematical truth (that "4" is indeed "4") the solution we concluded is indeed correct. It's my wish that you will be able to understand any type of problem of this manner. Please let me know if you have any further questions regarding this problem or any other math problem that's a puzzler for you.