Estimate the limit numerically if it exists. (If an answer does not exist, enter DNE.) lim 7 X-6 X - Submit Answer /1 Points] DETAILS WANEFMAC7 10.1.009. Estimate the limit numerically if it exists. (If an answer does not exist, enter DNE.) lim x + 5 x - -4 x+4 Submit Answer /1 Points] DETAILS WANEFMAC7 10.1.010. Estimate the limit numerically if it exists. (If an answer does not exist, enter DNE.) lim x'+ 2x +1 x - -1 x+1 Submit