You can write each term in the given expression as the sum or difference of two terms:
[tex]\begin{gathered} 7x=4x+3x \\ y=7y-6y \\ -4=-10+6 \end{gathered}[/tex]
Then, the next expression is ewual to the given expression:
[tex]7x+y-4=4x+3x+7y-6y-10+6[/tex]
