Answer:
124
Step-by-step explanation:
6+(249-2x)^(1/5) =7
above equation is in power form
transfer 6 on other side
(249-2x)^(1/5) = 7-6
(249-2x)^(1/5) =1
make both sides whole power 5 in order to get rid of 1/5 power
((249-2x)^(1/5))^5 = (1)^5
(249-2x) = 1
transfer 249 on other side
-2x =1-249
-2x=-248
2x=248
x=248/2
x=124
