EXPLANATION
Given the equation h + 1.8 = 11.9
Subtracting -1.8 to both sides:
h = 11.9 - 1.8
Adding like numbers:
h = 10.1
We can check the answer by substituting on the equation as follows:
10.1 + 1.8 = 11.9
Adding numbers:
11.9 = 11.9
As the numbers are equal, the equation is well done.
