Roman solved the equation 5 a + 2 b = 10 for a. His steps are shown below.


1. Subtract 2b: 5 a + 2 b minus 2 b = 10 minus 2 b. 5 a = 10 minus 2 b.


2. Multiply by 5: a = 50 minus 10 b.



Which statement about Roman’s work is true?

I need a quick answer pls!