Question 289642
sum means add
eight means 8
twice a number means 2n
is equal means =
2less means -2
the number means n
8+2n=-2+n
8+2n=n-2
add 2 to both sides (bs)
10+2n=n
subtract 2n from bs
10=-n
n=-10
8+*2(-10)=-10-2
8-20=-12
-12=-12