Question

1 - 2x = -x - 3 what is the answer?

Answer 1

Isolate the variable x.
 1-2x=-x-3
1=x-3
x=4

Answer 2

1 -2x = -x - 3
+x +x

1 -x = -3
-1 -1

-x = -4
/- /-

x = 4