Subtract m + 8 from 5m + 11.
5m + 11 - (m + 8)= 5m + 11 - m - 8= 4m + 3
(m + 8) - (5m + 11) m + 8 - 5m = ll (combine like terms) -4m + 8 = ll -4m + 8 -8 = 11 -8 (subtract both sides by 8) -4m = 3 (divide each side by 4) m = -3/4