+128406 54-10x ≤ 20+7x add 10x to both sides, subtract 20 from both sides
34 ≤ 17x divide both sides by 17
2 ≤ x
+219 54-10x<=20+7x
Subtract 54 on both sides
54 - 54 -10x <=20 + 7x - 54
-10x=7x - 34
Subtract 7x on both sides
-10x - 7x = 7x - 34 - 7x
-17x = -34
Then divide -17 on both sides
-17x/-17 = -17/-34
Dividing two negatives makes a positive
x = 2
The inequality symbol was not useful so it was left behind, it had no corolation with the equation.
Hope this helped ;P
+219 Oh I see Phill explained it better than I did use Phills. The inequality symbol was this ( ≤ ) symbol not <= ok I understand.
