answer is 7.
since the unkown number is multiplied by itself what we need to do to get out answer is to work backwards. Thats where we cube root 343 to get 7.(∛343 =7)
I am pretty sure it’s 14 I think but i don’t know for sure
What are the best things about this place
-7x + 6 =27
subtract 6 from both sides
-7x =21
divide both sides by -7
x= -3