Hello!
Answer:
![\boxed{w=4}\checkmark](https://img.qammunity.org/2020/formulas/mathematics/middle-school/210bbppdo48cz6pskjg99ozgevx3z9hshu.png)
Answer should be positive sign.
Explanation:
First, you subtract by w both sides of an equation.
![6w-w=w+20-w](https://img.qammunity.org/2020/formulas/mathematics/middle-school/qej4nv8quchrzvjw7yfxekpuk3ww28sg43.png)
Simplify.
![5w=20](https://img.qammunity.org/2020/formulas/mathematics/middle-school/76lofkwnkid7mvr21appl75do11mnsplu9.png)
Then, you divide by 5 both sides of an equation.
![(5w)/(5)=(20)/(5)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/lp7jmebvn5os6xkr7etv35ag8xo1h4pgqi.png)
Finally, simplify and then solve.
![20/ 5 = 4](https://img.qammunity.org/2020/formulas/mathematics/middle-school/r0686m7gm1n1i6ctsjrw1g37j0nqtsce4u.png)
, which is our final answer.
Hope this helps!
Thanks!
Have a nice day! :)