In order to solve this equation, we need to find out what n is. We have to get n by itself on one side of the equation. Perform the inverse operations to both sides of the equation.
19+n=30
19 is being added to n. The inverse of addition is subtraction. Subtract 19 from both sides.
19-19+n=30-19
n=30-19
n=11
Let's check out solution. Plug 11 in for n in the original equation.
19+n=30
19+11=30
30=30
The statement above is true, so we know our solution is correct.
