The Solution.
Step 1:
We shall write out the two equations.
[tex]\begin{gathered} 2x-1=5x\ldots\text{eqn(A)} \\ -1=3x\ldots eqn(B) \end{gathered}[/tex]Step 2:
We shall subtract 2x from both sides of equation A to obtain equation B.
[tex]\begin{gathered} 2x-1=5x \\ \text{Subtracting 2x from both sides, we get} \\ 2x-1-2x=5x-2x \\ -1=3x\text{ (equation B)} \end{gathered}[/tex]St