Respuesta :

kanest
Subtract 30 from both sides.

[tex] \frac{1}{2}x = 25 [/tex]

Multiply both sides by 2 to get x by itself.

[tex]x = 50[/tex]

The answer is x = 50.
fireballqueen25
1/2x+30=55
        -30   -30
1/2x=25
   *2    *2
x=50.