The population of New York City is about 18.8 million people. This is about 9.9 million more people than the population of Chicago. Write and solve an equation to find the approximate population of Chicago
Let's assume that the population of Chicago is "x".
According to the problem, the population of New York City is about 9.9 million more than the population of Chicago.
So, we can write the equation:
18.8 million = x + 9.9 million
To solve for x, we need to isolate it on one side of the equation.
Subtracting 9.9 million from both sides:
18.8 million - 9.9 million = x
8.9 million = x
Therefore, the approximate population of Chicago is 8.9 million people.