First, we add 25w on both sides to give us a positive expression for w:
[tex]600 \geqslant 200 + 25w[/tex]
Next, minus 200 from both sides to isolate the expression for w:
[tex]400 \geqslant 25w[/tex]
Now we divide by 25 on both sides to obtain the inequality for w:
[tex]16 \geqslant w[/tex]
So
[tex]w \leqslant 16[/tex]
