1.) Mathematical expression or equation
[tex]x - 2[/tex]
Variable
[tex]x[/tex]
2.) Mathematical expression or equation
[tex]6x = 24[/tex]
Variable
[tex]x[/tex]
3.) Mathematical expression or equation
[tex]10 - 8a = 2[/tex]
Variable
[tex]a[/tex]
4.) Mathematical expression or equation
[tex] {x}^{2} = 36[/tex]
Variable
[tex]x[/tex]
5.) Mathematical expression or equation
[tex]( \frac{x}{3} ) - 5 = 0[/tex]
Variable
[tex]x[/tex]