A student collects 12 ladybugs for a science project. This is nine fewer than the number of ladybugs the student collected yesterday. Write and solve an equation to find the number of ladybugs the student collected yesterday.

x - 12 = 9

Thank you

You're welcome.

To find the number of ladybugs the student collected yesterday, we can set up an equation using the information given.

Let's assume the number of ladybugs the student collected yesterday is "x".

According to the given information, the student collected 12 ladybugs for the science project, which is nine fewer than the number of ladybugs collected yesterday. This can be written as:

12 = x - 9

To solve this equation for x, we need to isolate the variable x on one side of the equation. We can do this by adding 9 to both sides of the equation:

12 + 9 = x - 9 + 9

21 = x

Therefore, the student collected 21 ladybugs yesterday.