Respuesta :

Answer:

x=7.5

Step-by-step explanation:

10+10+10=4x

30=4x

x=7.5

Answer:

x=7.5

Step-by-step explanation:

First you would simplify:

30=4x

Next isolate x:

30/4=x

again, simplify:

7.5=x or, 7 1/2=x