Question

How many solutions does 7x - 1 = 2x - 1 + 5 have?

Answer 1

Since this equation seems to be of first degree polynomials, it should have only one solution, we can solve for x to see that:

`\begin{gathered} 7x-1=2x-1+5 \\ 5x=1-1+5 \\ 5x=5 \\ x=1 \end{gathered}`

So, the expression indeed have only one solution.