Answer:
16
Step-by-step explanation:
First, we solve for x.
[tex]2x+7=-21\\2x=-28\\x=-14[/tex]
We now evaluate 2-x, plugging in -14 for x.
[tex]2-x\\2-(-14)\\2+14\\16[/tex]
12.5
2x+7=-21
2x+7-7=-21-7
2x=-28
2x/2=-28/2
x=-14
2-x=?
2-(-14)
2+14=16
Hope this helped!
