According to the question if we take one number as a M and 3 more than other represent m+3 so the equation will be : m+(m+3)=-13 2m+3=-13 2m=-16 m=-8(one number) to get another number plug in -8 for m and that gives us -8+3=-5 prove if we pluged in all than we get the same result,-8-5=-13 that was the prove of that math hopefully you get it
