Answer:
11
Step-by-step explanation:
Double negative makes positive
=3+(+8) [-×-=+]
=11
i think its evaluatex
-27.4
M ( -4,9)
let the unknown number be x
1St step: twice the number is 2(x) =2x
2nd step: 2x -14
3rd step: 2x - 14=28...
a
right on khan acadamy
