Solving:
[tex]4 = 0.25(w - 4.3)[/tex]
Delete the first parentheses by the distributive property, with the distributive property, we multiply the '0.25' first:
[tex]4 = 0.25w - 1.075[/tex]
Now, put the numbers with letter (incognito) to the right and numbers without letter to the left, changing the signal when changing sides.
[tex]- 0.25w = - 4 - 1.075[/tex]
[tex]- 0.25w = - 5.075[/tex]
simplify by (-1)
[tex]- 0.25w = - 5.075\:*(-1)[/tex]
[tex]0.25w = 5.075[/tex]
[tex]w = \frac{5.075}{0.25} [/tex]
[tex]\boxed{\boxed{w = 20.3}}\end{array}}\qquad\quad\checkmark[/tex]
