Answer:
x= -15
Step-by-step explanation:
To solve the equation, we want to find out what x is. In order to do this, we have to get x by itself. Perform the opposite of what is being done to the equation. Keep in mind, everything done to one side, has to be done to the other.
x+9=-6
9 is being added onto x. (+9) The opposite of addition is subtraction. Therefore, subtract 9 from both sides (-9) +9 and -9 will cancel and leave x by itself.
x+9-9= -6-9
x=-6-9
x=-15
If we want to check our answer, we can substitute -15 for x in the original equation.
x+9 = -6
-15+9=-6
-6=-6
This is true, so we know our answer is correct.
