Answer:
Step-by-step explanation:
[tex]18 - 3w = 4w[/tex]
Let's get all of the terms with the [tex]w[/tex] on the right-hand side of the equation, and everything else on the left-hand side of the equation.
To do this, we should add [tex]3w[/tex] to both sides of the equation to remove the [tex]-3w[/tex] from the left-hand side of the equation:
[tex]18 - 3w + 3w = 4w + 3w[/tex]
[tex]18 = 7w[/tex]
Finally, to get the [tex]w[/tex] by itself, we can divide both sides by [tex]7[/tex]:
[tex]\frac{18}{7} = \frac{7w}{7}[/tex]
[tex]w = \frac{18}{7}[/tex]