Question

-2x=-x-3 I don't know how to solve it

Answer 1

Answer:

x = 3

Step-by-step explanation:

$-2x=-x-3\qquad\text{add}\ x\ \text{to both sides}\\\\-2x+x=-x+x-3\\\\-x=-3\qquad\text{change the signs}\\\\x=3$