Question

5=-1+2a
-16n=256
x+7×=8
7×+14=-3
16t+4=20​

Answer 1

5=-1+2a -> 6 = 2a -> a = 3

-16n=256 -> n= -16

x+7x =8 -> 8x=8 -> x=1

7x+14=-3 -> 7x=-17 -> x= -17/7

16t+4=20 -> 16t=16 -> t=1