Algebra
Make an equation to make the equation equal 12.
[tex]2x - 13 + x + 4 = 12[/tex]
Combine Like-Terms.
Make an equation.
[tex]3x - 9 = 12[/tex]
Add nine to both sides.
[tex]3x = 21[/tex]
Divide both sides by three.
[tex]x = 7[/tex]
