Please tell me if I did a good job!

(Question:)
Write an equation with a variable on both sides of the equal sign that has infinitely many solutions. Solve the equation and explain why it has an infinite number of solutions.

(My answer:)

3x + 5 = 3x + 5

This equation is equal to its self, and if you were to subtract 3x from both sides you will get 5 = 5.

When we use infinite solutions, no matter what number you use for the variable (in this case x) the answer will always be true.

Example:
Let x = -4

So, 3x + 5 = 3x + 5

3(-4) + 5 = 3(-4) +5

-7 = -7

Is this a good answer?