dose anyone know how to solve any of these?
1. W is the midpoint of UV. if UW= x+23, and WV= 2x+8, what is x?

2. W is the midpoint of UV. if UW= x+23, and WV= 2x+8, what is WU?

3. W is the midpoint of UV. if UW= x+23, and WV= 2x+8, what is UV?

4. Z is the midpoint of YA. if YZ=
x+12, and ZA= 6x-13, what is YA?